c语言客户区坐标,C语言,Win32 SDK下 捕捉光标进出客户区(WM

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c语言客户区坐标,C语言,Win32 SDK下 捕捉光标进出客户区(WM

#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[] = TEXT ("UIDesign");

HWND         hwnd;

MSG          msg;

WNDCLASSEX   wndclassex = {0};

wndclassex.cbSize        = sizeof(WNDCLASSEX);

wndclassex.style         = CS_HREDRAW | CS_VREDRAW;

wndclassex.lpfnWndProc   = WndProc;

wndclassex.cbClsExtra    = 0;

wndclassex.cbWndExtra    = 0;

wndclassex.hInstance     = hInstance;

wndclassex.hIcon         = LoadIcon (NULL, IDI_APPLICATION);

wndclassex.hCursor       = LoadCursor (NULL, IDC_ARROW);

wndclassex.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);

wndclassex.lpszMenuName  = NULL;

wndclassex.lpszClassName = szAppName;

wndclassex.hIconSm       = wndclassex.hIcon;

if (!RegisterClassEx (&wndclassex))

{

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

return 0;

}

hwnd = 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 = 0, isOut = 1;

switch(uMsg)

{

case WM_MOUSELEAVE:

hdc = GetDC (hWnd) ;

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

ReleaseDC (hWnd, hdc) ;

isIn=0;

isOut = 1;

break;

case WM_MOUSEHOVER:

if (isOut != 0)

{

hdc = GetDC (hWnd) ;

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

ReleaseDC (hWnd, hdc) ;

isIn = 0;

isOut = 0;

}

break;

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

if (isIn == 0)

{

trmouse.cbSize = sizeof(TRACKMOUSEEVENT);

trmouse.dwFlags = TME_LEAVE | TME_HOVER;

trmouse.dwHoverTime = 10;

trmouse.hwndTrack = hWnd;

if(!_TrackMouseEvent(&trmouse))

return FALSE;

isIn++;

}

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ＭＦＣ的哈！！

如果是ＭＦＣ中的问题，暂时我没办法回答！！谢谢

本文标签： c语言客户区坐标c语言Win32 SDK下 捕捉光标进出客户区(WM