2.17 win32 按钮事件的处理

按钮的本质就是窗口

点击查看代码

void CreateButton(HWND hwnd)
{
	HWND hwndPushButton;
	HWND hwndCheckBox;
	HWND hwndRadio;								

	hwndPushButton = CreateWindow (
		TEXT("button"), //系统自带的类
		TEXT("普通按钮"),
		//WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_DEFPUSHBUTTON,
		WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_DEFPUSHBUTTON,
		10, 10,			//位置和大小
		80, 20,			//位置和大小
		hwnd, 			//窗口句柄
		(HMENU)1001,		//子窗口ID	-用来识别
		hAppInstance, 		//句柄
		NULL);							

	hwndCheckBox = CreateWindow (
		TEXT("button"),
		TEXT("复选框"),
		//WS_CHILD | WS_VISIBLE | BS_CHECKBOX | BS_AUTOCHECKBOX,
		WS_CHILD | WS_VISIBLE | BS_CHECKBOX |BS_AUTOCHECKBOX ,
		10, 40,
		80, 20,
		hwnd,
		(HMENU)1002,		//子窗口ID
		hAppInstance,
		NULL);							

	hwndRadio = CreateWindow (
		TEXT("button"),
		TEXT("单选按钮"),
		//WS_CHILD | WS_VISIBLE | BS_RADIOBUTTON | BS_AUTORADIOBUTTON,
		WS_CHILD | WS_VISIBLE | BS_RADIOBUTTON  ,
		10, 70,
		80, 20,
		hwnd,
		(HMENU)1003,		//子窗口ID
		hAppInstance,
		NULL);
}
![image](https://img2023.cnblogs.com/blog/3001071/202302/3001071-20230217213921302-1715905133.png)

按钮的本质就是窗口

按钮的WNDCLASS不是我们定义的，是系统预定义好的。如果我们想知道，系统预定义的WNDCLASS都包含什么样的信息

点击查看代码

TCHAR szBuffer[0x20];
GetClassName(hwndPushButton,szBuffer,0x20);					

WNDCLASS wc;
GetClassInfo(hAppInstance,szBuffer,&wc);
OutputDebugStringF("-->%s\n",wc.lpszClassName);
OutputDebugStringF("-->%x\n",wc.lpfnWndProc);					

逆向分析

1.找到入口

2.找到关键函数 定位信息循环

3.定位关键的按钮