CreateWindow创建无边框 可拉伸窗体

createwindow 定义

HWND WINAPI CreateWindow(
  _In_opt_ LPCTSTR   lpClassName,
  _In_opt_ LPCTSTR   lpWindowName,
  _In_     DWORD     dwStyle,
  _In_     int       x,
  _In_     int       y,
  _In_     int       nWidth,
  _In_     int       nHeight,
  _In_opt_ HWND      hWndParent,
  _In_opt_ HMENU     hMenu,
  _In_opt_ HINSTANCE hInstance,
  _In_opt_ LPVOID    lpParam
);

 修改样式设置style

将窗体设置为 无边框（|WS_POPUP），方便嵌到其他程序里面，一般设置为最大化（WS_MAXIMIZE），如需设置可拖拽（WS_SIZEBOX）。如果需要设置成固定大小及位置 调整xy坐标及width、height 宽高。

CreateWindow((LPCTSTR)"name",
		(LPCTSTR)"title",
		WS_SIZEBOX |WS_POPUP|WS_MAXIMIZE ,
		0,
		0,
		500,
		600,
		0,
		0,
		(HINSTANCE)hWnd,
		NULL);

下面为一些参考链接

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https://msdn.microsoft.com/en-us/library/windows/desktop/ms632679(v=vs.85).aspx

CreateWindow function

 

Creates an overlapped, pop-up, or child window. It specifies the window class, window title, window style, and (optionally) the initial position and size of the window. The function also specifies the window's parent or owner, if any, and the window's menu.

To use extended window styles in addition to the styles supported by CreateWindow, use the CreateWindowEx function.

Syntax

C++

 

HWND WINAPI CreateWindow(
  _In_opt_ LPCTSTR   lpClassName,
  _In_opt_ LPCTSTR   lpWindowName,
  _In_     DWORD     dwStyle,
  _In_     int       x,
  _In_     int       y,
  _In_     int       nWidth,
  _In_     int       nHeight,
  _In_opt_ HWND      hWndParent,
  _In_opt_ HMENU     hMenu,
  _In_opt_ HINSTANCE hInstance,
  _In_opt_ LPVOID    lpParam
);

Parameters

lpClassName [in, optional]

Type: LPCTSTR

A null-terminated string or a class atom created by a previous call to the RegisterClass or RegisterClassEx function. The atom must be in the low-order word of lpClassName; the high-order word must be zero. If lpClassName is a string, it specifies the window class name. The class name can be any name registered with RegisterClass or RegisterClassEx, provided that the module that registers the class is also the module that creates the window. The class name can also be any of the predefined system class names. For a list of system class names, see the Remarks section.

lpWindowName [in, optional]

Type: LPCTSTR

The window name. If the window style specifies a title bar, the window title pointed to by lpWindowName is displayed in the title bar. When using CreateWindow to create controls, such as buttons, check boxes, and static controls, use lpWindowName to specify the text of the control. When creating a static control with the SS_ICON style, use lpWindowName to specify the icon name or identifier. To specify an identifier, use the syntax "#num".

dwStyle [in]

Type: DWORD

The style of the window being created. This parameter can be a combination of the window style values, plus the control styles indicated in the Remarks section.

x [in]

Type: int

The initial horizontal position of the window. For an overlapped or pop-up window, the x parameter is the initial x-coordinate of the window's upper-left corner, in screen coordinates. For a child window, x is the x-coordinate of the upper-left corner of the window relative to the upper-left corner of the parent window's client area. If this parameter is set to CW_USEDEFAULT, the system selects the default position for the window's upper-left corner and ignores the y parameter. CW_USEDEFAULT is valid only for overlapped windows; if it is specified for a pop-up or child window, the x and y parameters are set to zero.

y [in]

Type: int

The initial vertical position of the window. For an overlapped or pop-up window, the y parameter is the initial y-coordinate of the window's upper-left corner, in screen coordinates. For a child window, y is the initial y-coordinate of the upper-left corner of the child window relative to the upper-left corner of the parent window's client area. For a list box, y is the initial y-coordinate of the upper-left corner of the list box's client area relative to the upper-left corner of the parent window's client area.

If an overlapped window is created with the WS_VISIBLE style bit set and the x parameter is set to CW_USEDEFAULT, then the y parameter determines how the window is shown. If the y parameter is CW_USEDEFAULT, then the window manager calls ShowWindow with the SW_SHOW flag after the window has been created. If the y parameter is some other value, then the window manager calls ShowWindow with that value as the nCmdShow parameter.

nWidth [in]

Type: int

The width, in device units, of the window. For overlapped windows, nWidth is either the window's width, in screen coordinates, or CW_USEDEFAULT. If nWidth is CW_USEDEFAULT, the system selects a default width and height for the window; the default width extends from the initial x-coordinate to the right edge of the screen, and the default height extends from the initial y-coordinate to the top of the icon area. CW_USEDEFAULT is valid only for overlapped windows; if CW_USEDEFAULT is specified for a pop-up or child window, nWidth and nHeight are set to zero.

nHeight [in]

Type: int

The height, in device units, of the window. For overlapped windows, nHeight is the window's height, in screen coordinates. If nWidth is set to CW_USEDEFAULT, the system ignores nHeight.

hWndParent [in, optional]

Type: HWND

A handle to the parent or owner window of the window being created. To create a child window or an owned window, supply a valid window handle. This parameter is optional for pop-up windows.

To create a message-only window, supply HWND_MESSAGE or a handle to an existing message-only window.

hMenu [in, optional]

Type: HMENU

A handle to a menu, or specifies a child-window identifier depending on the window style. For an overlapped or pop-up window, hMenu identifies the menu to be used with the window; it can be NULL if the class menu is to be used. For a child window, hMenu specifies the child-window identifier, an integer value used by a dialog box control to notify its parent about events. The application determines the child-window identifier; it must be unique for all child windows with the same parent window.

hInstance [in, optional]

Type: HINSTANCE

A handle to the instance of the module to be associated with the window.

lpParam [in, optional]

Type: LPVOID

A pointer to a value to be passed to the window through the CREATESTRUCT structure (lpCreateParams member) pointed to by the lParam param of the WM_CREATE message. This message is sent to the created window by this function before it returns.

If an application calls CreateWindow to create a MDI client window, lpParam should point to a CLIENTCREATESTRUCT structure. If an MDI client window calls CreateWindow to create an MDI child window, lpParam should point to a MDICREATESTRUCT structure. lpParam may be NULL if no additional data is needed.

Return value

Type:

Type: HWND

If the function succeeds, the return value is a handle to the new window.

If the function fails, the return value is NULL. To get extended error information, call GetLastError.

This function typically fails for one of the following reasons:

• an invalid parameter value
• the system class was registered by a different module
• The WH_CBT hook is installed and returns a failure code
• if one of the controls in the dialog template is not registered, or its window window procedure fails WM_CREATE or WM_NCCREATE

Remarks

Before returning, CreateWindow sends a WM_CREATE message to the window procedure. For overlapped, pop-up, and child windows, CreateWindow sends WM_CREATE, WM_GETMINMAXINFO, and WM_NCCREATE messages to the window. The lParam parameter of the WM_CREATE message contains a pointer to a CREATESTRUCT structure. If the WS_VISIBLE style is specified, CreateWindow sends the window all the messages required to activate and show the window.

If the created window is a child window, its default position is at the bottom of the Z-order. If the created window is a top-level window, its default position is at the top of the Z-order (but beneath all topmost windows unless the created window is itself topmost).

For information on controlling whether the Taskbar displays a button for the created window, see Managing Taskbar Buttons.

For information on removing a window, see the DestroyWindow function.

The following predefined system classes can be specified in the lpClassName parameter. Note the corresponding control styles you can use in the dwStyle parameter.

System class	Meaning
BUTTON	Designates a small rectangular child window that represents a button the user can click to turn it on or off. Button controls can be used alone or in groups, and they can either be labeled or appear without text. Button controls typically change appearance when the user clicks them. For more information, see Buttons For a table of the button styles you can specify in the dwStyle parameter, see Button Styles.
COMBOBOX	Designates a control consisting of a list box and a selection field similar to an edit control. When using this style, an application should either display the list box at all times or enable a drop-down list box. If the list box is visible, typing characters into the selection field highlights the first list box entry that matches the characters typed. Conversely, selecting an item in the list box displays the selected text in the selection field. For more information, see Combo Boxes. For a table of the combo box styles you can specify in the dwStyle parameter, see Combo Box Styles.
EDIT	Designates a rectangular child window into which the user can type text from the keyboard. The user selects the control and gives it the keyboard focus by clicking it or moving to it by pressing the TAB key. The user can type text when the edit control displays a flashing caret; use the mouse to move the cursor, select characters to be replaced, or position the cursor for inserting characters; or use the BACKSPACE key to delete characters. For more information, see Edit Controls. For a table of the edit control styles you can specify in the dwStyle parameter, see Edit Control Styles.
LISTBOX	Designates a list of character strings. Specify this control whenever an application must present a list of names, such as file names, from which the user can choose. The user can select a string by clicking it. A selected string is highlighted, and a notification message is passed to the parent window. For more information, see List Boxes. For a table of the list box styles you can specify in the dwStyle parameter, see List Box Styles.
MDICLIENT	Designates an MDI client window. This window receives messages that control the MDI application's child windows. The recommended style bits are WS_CLIPCHILDREN and WS_CHILD. Specify the WS_HSCROLL and WS_VSCROLL styles to create an MDI client window that allows the user to scroll MDI child windows into view. For more information, see Multiple Document Interface.
RichEdit	Designates a Microsoft Rich Edit 1.0 control. This window lets the user view and edit text with character and paragraph formatting, and can include embedded Component Object Model (COM) objects. For more information, see Rich Edit Controls. For a table of the rich edit control styles you can specify in the dwStyle parameter, see Rich Edit Control Styles.
RICHEDIT_CLASS	Designates a Microsoft Rich Edit 2.0 control. This controls let the user view and edit text with character and paragraph formatting, and can include embedded COM objects. For more information, see Rich Edit Controls. For a table of the rich edit control styles you can specify in the dwStyle parameter, see Rich Edit Control Styles.
SCROLLBAR	Designates a rectangle that contains a scroll box and has direction arrows at both ends. The scroll bar sends a notification message to its parent window whenever the user clicks the control. The parent window is responsible for updating the position of the scroll box, if necessary. For more information, see Scroll Bars. For a table of the scroll bar control styles you can specify in the dwStyle parameter, see Scroll Bar Control Styles.
STATIC	Designates a simple text field, box, or rectangle used to label, box, or separate other controls. Static controls take no input and provide no output. For more information, see Static Controls. For a table of the static control styles you can specify in the dwStyle parameter, see Static Control Styles.

CreateWindow is implemented as a call to the CreateWindowEx function, as shown below.

 

 

#define CreateWindowA(lpClassName, lpWindowName, dwStyle, x, y, nWidth, nHeight, hWndParent, hMenu, hInstance, lpParam)\
CreateWindowExA(0L, lpClassName, lpWindowName, dwStyle, x, y, nWidth, nHeight, hWndParent, hMenu, hInstance, lpParam)

#define CreateWindowW(lpClassName, lpWindowName, dwStyle, x, y, nWidth, nHeight, hWndParent, hMenu, hInstance, lpParam)\
CreateWindowExW(0L, lpClassName, lpWindowName, dwStyle, x, y, nWidth, nHeight, hWndParent, hMenu, hInstance, lpParam)

#ifdef UNICODE
#define CreateWindow  CreateWindowW
#else
#define CreateWindow  CreateWindowA
#endif

Examples

For an example, see Using Window Classes.

Requirements

Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Winuser.h (include Windows.h)
Unicode and ANSI names	CreateWindowW (Unicode) and CreateWindowA (ANSI)

https://msdn.microsoft.com/en-us/library/ms632600(v=vs.85).aspx

Window Styles

 

The following are the window styles. After the window has been created, these styles cannot be modified, except as noted.

Constant/value	Description
WS_BORDER 0x00800000L	The window has a thin-line border.
WS_CAPTION 0x00C00000L	The window has a title bar (includes the WS_BORDER style).
WS_CHILD 0x40000000L	The window is a child window. A window with this style cannot have a menu bar. This style cannot be used with the WS_POPUP style.
WS_CHILDWINDOW 0x40000000L	Same as the WS_CHILD style.
WS_CLIPCHILDREN 0x02000000L	Excludes the area occupied by child windows when drawing occurs within the parent window. This style is used when creating the parent window.
WS_CLIPSIBLINGS 0x04000000L	Clips child windows relative to each other; that is, when a particular child window receives a WM_PAINT message, the WS_CLIPSIBLINGS style clips all other overlapping child windows out of the region of the child window to be updated. If WS_CLIPSIBLINGS is not specified and child windows overlap, it is possible, when drawing within the client area of a child window, to draw within the client area of a neighboring child window.
WS_DISABLED 0x08000000L	The window is initially disabled. A disabled window cannot receive input from the user. To change this after a window has been created, use the EnableWindow function.
WS_DLGFRAME 0x00400000L	The window has a border of a style typically used with dialog boxes. A window with this style cannot have a title bar.
WS_GROUP 0x00020000L	The window is the first control of a group of controls. The group consists of this first control and all controls defined after it, up to the next control with the WS_GROUP style. The first control in each group usually has the WS_TABSTOP style so that the user can move from group to group. The user can subsequently change the keyboard focus from one control in the group to the next control in the group by using the direction keys. You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function.
WS_HSCROLL 0x00100000L	The window has a horizontal scroll bar.
WS_ICONIC 0x20000000L	The window is initially minimized. Same as the WS_MINIMIZE style.
WS_MAXIMIZE 0x01000000L	The window is initially maximized.
WS_MAXIMIZEBOX 0x00010000L	The window has a maximize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.
WS_MINIMIZE 0x20000000L	The window is initially minimized. Same as the WS_ICONIC style.
WS_MINIMIZEBOX 0x00020000L	The window has a minimize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.
WS_OVERLAPPED 0x00000000L	The window is an overlapped window. An overlapped window has a title bar and a border. Same as the WS_TILED style.
WS_OVERLAPPEDWINDOW (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX)	The window is an overlapped window. Same as the WS_TILEDWINDOW style.
WS_POPUP 0x80000000L	The windows is a pop-up window. This style cannot be used with the WS_CHILD style.
WS_POPUPWINDOW (WS_POPUP | WS_BORDER | WS_SYSMENU)	The window is a pop-up window. The WS_CAPTION and WS_POPUPWINDOW styles must be combined to make the window menu visible.
WS_SIZEBOX 0x00040000L	The window has a sizing border. Same as the WS_THICKFRAME style.
WS_SYSMENU 0x00080000L	The window has a window menu on its title bar. The WS_CAPTION style must also be specified.
WS_TABSTOP 0x00010000L	The window is a control that can receive the keyboard focus when the user presses the TAB key. Pressing the TAB key changes the keyboard focus to the next control with the WS_TABSTOP style. You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function. For user-created windows and modeless dialogs to work with tab stops, alter the message loop to call the IsDialogMessage function.
WS_THICKFRAME 0x00040000L	The window has a sizing border. Same as the WS_SIZEBOX style.
WS_TILED 0x00000000L	The window is an overlapped window. An overlapped window has a title bar and a border. Same as the WS_OVERLAPPED style.
WS_TILEDWINDOW (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX)	The window is an overlapped window. Same as the WS_OVERLAPPEDWINDOW style.
WS_VISIBLE 0x10000000L	The window is initially visible. This style can be turned on and off by using the ShowWindow or SetWindowPos function.
WS_VSCROLL 0x00200000L	The window has a vertical scroll bar.

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C:\Program Files (x86)\Windows Kits\10\Include\10.0.15063.0\um\WinUser.h 为各种定义

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from:http://www.cnblogs.com/mqxs/p/3504637.html

CreateWindow

该函数创建一个重叠式窗口、弹出式窗口或子窗口。它指定窗口类，窗口标题，窗口风格，以及窗口的初始位置及大小（可选的）。函数也指该窗口的父窗口或所属窗口（如果存在的话），及窗口的菜单。若要使用除CreateWindow函数支持的风格外的扩展风格，则使用CreateWindowEx函数代替CreateWindow函数。

HWND CreateWindow(

LPCTSTR lpClassName,

LPCTSTR lpWindowName,

DWORD dwStyle,

int x,

int y,

int nWidth，

int nHeight，

HWND hWndParent,

HMENU hMenu，

HANDLE hlnstance，

LPVOID lpParam);

 

lpClassName

指向一个空结束的字符串或整型数atom。如果该参数是一个整型量，它是由此前调用theGlobalAddAtom函数产生的全局量。这个小于0xC000的16位数必须是lpClassName参数字的低16位，该参数的高位必须是0。

如果lpClassName是一个字符串，它指定了窗口的类名。这个类名可以是任何用函数RegisterClass注册的类名，或是任何预定义的控制类名。请看说明部分的列表。

LPWindowName

指向一个指定窗口名的空结束的字符串指针。

如果窗口风格指定了标题条，由lpWindowName指向的窗口标题将显示在标题条上。当使用Createwindow函数来创建控制例如按钮，选择框和静态控制时，可使用lpWindowName来指定控制文本。

dwStyle

指定创建窗口的风格。该参数可以是下列窗口风格的组合再加上说明部分的控制风格。风格意义：

WS_BORDER：创建一个带边框的窗口。

WS_CAPTION：创建一个有标题框的窗口（包括WS_BODER风格）。

WS_CHILD：创建一个子窗口。这个风格不能与WS_POPUP风格合用。

WS_CHILDWINDOW：与WS_CHILD相同。

WS_CLIPCHILDREN：当在父窗口内绘图时，排除子窗口区域。在创建父窗口时使用这个风格。

WS_CLIPSIBLINGS：排除子窗口之间的相对区域，也就是，当一个特定的窗口接收到WM_PAINT消息时，WS_CLIPSIBLINGS 风格将所有层叠窗口排除在绘图之外，只重绘指定的子窗口。如果未指定WS_CLIPSIBLINGS风格，并且子窗口是层叠的，则在重绘子窗口的客户区时，就会重绘邻近的子窗口。

WS_DISABLED：创建一个初始状态为禁止的子窗口。一个禁止状态的窗口不能接受来自用户的输入信息。

WS_DLGFRAME：创建一个带对话框边框风格的窗口。这种风格的窗口不能带标题条。

WS_GROUP：指定一组控制的第一个控制。这个控制组由第一个控制和随后定义的控制组成，自第二个控制开始每个控制，具有WS_GROUP风格，每个组的第一个控制带有WS_TABSTOP风格，从而使用户可以在组间移动。用户随后可以使用光标在组内的控制间改变键盘焦点。

WS_HSCROLL：创建一个有水平滚动条的窗口。

WS_ICONIC：创建一个初始状态为最小化状态的窗口。与WS_MINIMIZE风格相同。

WS_MAXIMIZE：创建一个初始状态为最大化状态的窗口。

WS_MAXIMIZEBOX：创建一个具有最大化按钮的窗口。该风格不能与WS_EX_CONTEXTHELP风格同时出现，同时必须指定WS_SYSMENU风格。

WS_OVERLAPPED：产生一个层叠的窗口。一个层叠的窗口有一个标题条和一个边框。与WS_TILED风格相同。

WS_OVERLAPPEDWINDOW：创建一个具有WS_OVERLAPPED，WS_CAPTION，WS_SYSMENU WS_THICKFRAME，WS_MINIMIZEBOX，WS_MAXIMIZEBOX风格的层叠窗口，与WS_TILEDWINDOW风格相同。

WS_POPUP：创建一个弹出式窗口。该风格不能与WS_CHILD风格同时使用。

WS_POPUPWINDOW：创建一个具有WS_BORDER，WS_POPUP,WS_SYSMENU风格的窗口，WS_CAPTION和WS_POPUPWINDOW必须同时设定才能使窗口某单可见。

WS_SIZEBOX：创建一个可调边框的窗口，与WS_THICKFRAME风格相同。

WS_SYSMENU：创建一个在标题条上带有窗口菜单的窗口，必须同时设定WS_CAPTION风格。

WS_TABSTOP：创建一个控制，这个控制在用户按下Tab键时可以获得键盘焦点。按下Tab键后使键盘焦点转移到下一具有WS_TABSTOP风格的控制。

WS_THICKFRAME：创建一个具有可调边框的窗口，与WS_SIZEBOX风格相同。

WS_TILED：产生一个层叠的窗口。一个层叠的窗口有一个标题和一个边框。与WS_OVERLAPPED风格相同。

WS_TILEDWINDOW:创建一个具有WS_OVERLAPPED，WS_CAPTION，WS_SYSMENU， WS_THICKFRAME，WS_MINIMIZEBOX，WS_MAXIMIZEBOX风格的层叠窗口。与WS_OVERLAPPEDWINDOW风格相同。

WS_VISIBLE：创建一个初始状态为可见的窗口。

WS_VSCROLL：创建一个有垂直滚动条的窗口。

X

指定窗口的初始水平位置。对一个层叠或弹出式窗口，X参数是屏幕坐标系的窗口的左上角的初始X坐标。对于子窗口，x是子窗口左上角相对父窗口客户区左上角的初始X坐标。如果该参数被设为CW_USEDEFAULT则系统为窗口选择缺省的左上角坐标并忽略Y参数。CW_USEDEFAULT只对层叠窗口有效，如果为弹出式窗口或子窗口设定，则X和y参数被设为零。

Y

指定窗口的初始垂直位置。对一个层叠或弹出式窗口，y参数是屏幕坐标系的窗口的左上角的初始y坐标。对于子窗口，y是子窗口左上角相对父窗口客户区左上角的初始y坐标。对于列表框，y是列表框客户区左上角相对父窗口客户区左上角的初始y坐标。如果层叠窗口是使用WS_VISIBLE风格位创建的并且X参数被设为CW_USEDEFAULT，则系统将忽略y参数。

nWidth

以设备单元指明窗口的宽度。对于层叠窗口，nWidth或是屏幕坐标的窗口宽度或是CW_USEDEFAULT。若nWidth是CW_USEDEFAULT，则系统为窗口选择一个缺省的高度和宽度：缺省宽度为从初始X坐标开始到屏幕的右边界，缺省高度为从初始X坐标开始到目标区域的顶部。CW_USEDEFAULT只对层叠窗口有效；如果为弹出式窗口和子窗口设定CW_USEDEFAULT标志则nWidth和nHeight被设为零。

nHeight

以设备单元指明窗口的高度。对于层叠窗口，nHeight是屏幕坐标的窗口宽度。若nWidth被设为CW_USEDEFAULT，则系统忽略nHeight参数。

hWndParent

指向被创建窗口的父窗口或所有者窗口的句柄。若要创建一个子窗口或一个被属窗口，需提供一个有效的窗口句柄。这个参数对弹出式窗口是可选的。Windows NT 5.0；创建一个消息窗口，可以提供HWND_MESSAGE或提供一个己存在的消息窗口的句柄。

hMenu

菜单句柄，或依据窗口风格指明一个子窗口标识。对于层叠或弹出式窗口，hMenu指定窗口使用的菜单：如果使用了菜单类，则hMenu可以为NULL。对于子窗口，hMenu指定了该子窗口标识（一个整型量），一个对话框使用这个整型值将事件通知父类。应用程序确定子窗口标识，这个值对于相同父窗口的所有子窗口必须是唯一的。

hlnstance

与窗口相关联的模块实例的句柄。

lpParam

指向一个值的指针，该值传递给窗口WM_CREATE消息。该值通过在IParam参数中的CREATESTRUCT结构传递。如果应用程序调用CreateWindow创建一个MDI客户窗口，则lpParam必须指向一个CLIENTCREATESTRUCT结构。

返回值：如果函数成功，返回值为新窗口的句柄：如果函数失败，返回值为NULL。若想获得更多错误信息，请调用GetLastError函数。