VC常用编程经验(5)
把文本放置到剪接板上：
CString source;
//put your text in source
if(OpenClipboard())
{
HGLOBAL clipbuffer;
char * buffer;
EmptyClipboard();
clipbuffer = GlobalAlloc(GMEM_DDESHARE, source.GetLength()+1);
buffer = (char*)GlobalLock(clipbuffer);
strcpy(buffer, LPCSTR(source));
GlobalUnlock(clipbuffer);
SetClipboardData(CF_TEXT,clipbuffer);
CloseClipboard();
}
从剪接板上获取文本：
char * buffer;
if(OpenClipboard())
{
buffer = (char*)GetClipboardData(CF_TEXT);
//do something with buffer here
//before it goes out of scope
}
CloseClipboard();
十九、将捕捉屏幕图像到剪切版中
void CShowBmpInDlgDlg::OnCutScreen()
{
ShowWindow(SW_HIDE);
RECT r_bmp={0,0,::GetSystemMetrics(SM_CXSCREEN),
::GetSystemMetrics(SM_CYSCREEN)};
HBITMAP hBitmap;
hBitmap=CopyScreenToBitmap(&r_bmp);
//hWnd为程序窗口句柄
if (OpenClipboard())
{
EmptyClipboard();
SetClipboardData(CF_BITMAP, hBitmap);
CloseClipboard();
}
ShowWindow(SW_SHOW);
}
HBITMAP CShowBmpInDlgDlg::CopyScreenToBitmap(LPRECT lpRect)
{
//lpRect 代表选定区域
{
HDC hScrDC, hMemDC;
// 屏幕和内存设备描述表
HBITMAP hBitmap, hOldBitmap;
// 位图句柄
int nX, nY, nX2, nY2;
// 选定区域坐标
int nWidth, nHeight;
// 位图宽度和高度
int xScrn, yScrn;
// 屏幕分辨率
- 上一篇：用VC++实现控制程序运行唯一实例
- 下一篇：如何用VC++控制多光驱