c语言客户区坐标,C语言,Win32SDK下捕捉光标进出客户区(WM_MOUSELEAVE和WM_MOUSEHOVER用法)...

#include

#include          //必须导入此头文件

#pragma comment(lib, "comctl32.lib")

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)

{

static TCHAR szAppName[] &＃61; TEXT ("UIDesign");

HWND         hwnd;

MSG          msg;

WNDCLASSEX   wndclassex &＃61; {0};

wndclassex.cbSize        &＃61; sizeof(WNDCLASSEX);

wndclassex.style         &＃61; CS_HREDRAW | CS_VREDRAW;

wndclassex.lpfnWndProc   &＃61; WndProc;

wndclassex.cbClsExtra    &＃61; 0;

wndclassex.cbWndExtra    &＃61; 0;

wndclassex.hInstance     &＃61; hInstance;

wndclassex.hIcon         &＃61; LoadIcon (NULL, IDI_APPLICATION);

wndclassex.hCursor       &＃61; LoadCursor (NULL, IDC_ARROW);

wndclassex.hbrBackground &＃61; (HBRUSH) GetStockObject (WHITE_BRUSH);

wndclassex.lpszMenuName  &＃61; NULL;

wndclassex.lpszClassName &＃61; szAppName;

wndclassex.hIconSm       &＃61; wndclassex.hIcon;

if (!RegisterClassEx (&wndclassex))

{

MessageBox (NULL, TEXT ("RegisterClassEx failed!"), szAppName, MB_ICONERROR);

return 0;

}

hwnd &＃61; CreateWindowEx (WS_EX_OVERLAPPEDWINDOW,

szAppName,

TEXT ("UIDesign_test"),

WS_OVERLAPPEDWINDOW,

CW_USEDEFAULT,

CW_USEDEFAULT,

500,

500,

NULL,

NULL,

hInstance,

NULL);

ShowWindow (hwnd, iCmdShow);

UpdateWindow (hwnd);

while (GetMessage (&msg, NULL, 0, 0))

{

TranslateMessage (&msg);

DispatchMessage (&msg);

}

return msg.wParam;

}

LRESULT CALLBACK WndProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam)

{

HDC hdc;

static TRACKMOUSEEVENT trmouse;

static int isIn &＃61; 0, isOut &＃61; 1;

switch(uMsg)

{

case WM_MOUSELEAVE:

hdc &＃61; GetDC (hWnd) ;

TextOut(hdc, 10, 10, "run_out", strlen("run_out"));

ReleaseDC (hWnd, hdc) ;

isIn&＃61;0;

isOut &＃61; 1;

break;

case WM_MOUSEHOVER:

if (isOut !&＃61; 0)

{

hdc &＃61; GetDC (hWnd) ;

TextOut(hdc, 10, 10, "run__in", strlen("run__in"));

ReleaseDC (hWnd, hdc) ;

isIn &＃61; 0;

isOut &＃61; 0;

}

break;

case WM_MOUSEMOVE:          //因为 TRACKMOUSEEVENT 只发送一次消息&＃xff0c;且随着其它消息产生而失效&＃xff0c;所以在此消息中调用函数。

if (isIn &＃61;&＃61; 0)

{

trmouse.cbSize &＃61; sizeof(TRACKMOUSEEVENT);

trmouse.dwFlags &＃61; TME_LEAVE | TME_HOVER;

trmouse.dwHoverTime &＃61; 10;

trmouse.hwndTrack &＃61; hWnd;

if(!_TrackMouseEvent(&trmouse))

return FALSE;

isIn&＃43;&＃43;;

}

break;

case WM_DESTROY:

PostQuitMessage(0);

break;

default:

return DefWindowProc(hWnd,uMsg,wParam,lParam);

break;

}

return 0;

}

我就只是发代码了,我说一下自己的个人想法,在研究这两个消息的时候,最好不要用MessageBox来检验是否成功,而去用TextOut()这个函数为好...至于原因,在这里不详说了,有问题留言.

这里的,可不是&＃xff2d;&＃xff26;&＃xff23;的哈&＃xff01;&＃xff01;

如果是&＃xff2d;&＃xff26;&＃xff23;中的问题&＃xff0c;暂时我没办法回答&＃xff01;&＃xff01;谢谢