比较急..
代码如下:void CDrawPicTextDlg::OnButton3()
{
HBITMAP hBitmap;
CBitmap cb;
CBitmap *Oldbmp;
CString InputPath, OutPutPath, TmpStr;
CDC TmpDC; m_EditInput.GetWindowText( InputPath );
m_EditOutput.GetWindowText( OutPutPath );
OutPutPath += "\\11.bmp";
m_EditText.GetWindowText( TmpStr );
hBitmap = (HBITMAP)::LoadImage(NULL, InputPath, IMAGE_BITMAP, 0, 0, LR_DEFAULTSIZE|LR_LOADFROMFILE); TmpDC.CreateCompatibleDC( GetDC() );
cb.FromHandle(hBitmap);
Oldbmp = TmpDC.SelectObject( &cb ); int nOldBKM = TmpDC.SetBkMode(TRANSPARENT);
TmpDC.SetTextColor(RGB(0, 0, 0));
TmpDC.TextOut(10, 10, TmpStr);
TmpDC.SetTextColor(RGB(255, 255, 255));
TmpDC.TextOut(11, 11, TmpStr); TmpDC.SelectObject(Oldbmp);
TmpDC.SetBkMode(nOldBKM);
cb.Attach(hBitmap); SaveBmp( hBitmap, OutPutPath );
MessageBox("ok");
}BOOL CDrawPicTextDlg::SaveBmp(HBITMAP hBitmap, CString FileName)
{
HDC hDC;
//当前分辨率下每象素所占字节数
int iBits;
//位图中每象素所占字节数
WORD wBitCount;
//定义调色板大小, 位图中像素字节大小 ,位图文件大小 , 写入文件字节数
DWORD dwPaletteSize=0, dwBmBitsSize=0, dwDIBSize=0, dwWritten=0;
//位图属性结构
BITMAP Bitmap;
//位图文件头结构
BITMAPFILEHEADER bmfHdr;
//位图信息头结构
BITMAPINFOHEADER bi;
//指向位图信息头结构
LPBITMAPINFOHEADER lpbi;
//定义文件,分配内存句柄,调色板句柄
HANDLE fh, hDib, hPal,hOldPal=NULL;
//计算位图文件每个像素所占字节数
hDC = CreateDC( "DISPLAY ", NULL, NULL, NULL);
iBits = GetDeviceCaps(hDC, BITSPIXEL) * GetDeviceCaps(hDC, PLANES);
DeleteDC(hDC);
if (iBits <= 1) wBitCount = 1;
else if (iBits <= 4) wBitCount = 4;
else if (iBits <= 8) wBitCount = 8;
else wBitCount = 24;
GetObject(hBitmap, sizeof(Bitmap), (LPSTR)&Bitmap);
bi.biSize = sizeof(BITMAPINFOHEADER);
bi.biWidth = Bitmap.bmWidth;
bi.biHeight = Bitmap.bmHeight;
bi.biPlanes = 1;
bi.biBitCount = wBitCount;
bi.biCompression = BI_RGB;
bi.biSizeImage = 0;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;
bi.biClrImportant = 0;
bi.biClrUsed = 0;
dwBmBitsSize = ((Bitmap.bmWidth * wBitCount + 31) / 32) * 4 * Bitmap.bmHeight;
//为位图内容分配内存
hDib = GlobalAlloc(GHND,dwBmBitsSize + dwPaletteSize + sizeof(BITMAPINFOHEADER));
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);
*lpbi = bi;
// 处理调色板
hPal = GetStockObject(DEFAULT_PALETTE);
if (hPal)
{
hDC = ::GetDC(NULL);
hOldPal = ::SelectPalette(hDC, (HPALETTE)hPal, FALSE);
RealizePalette(hDC);
}
// 获取该调色板下新的像素值
GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight, (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)
+dwPaletteSize, (BITMAPINFO *)lpbi, DIB_RGB_COLORS);
//恢复调色板
if (hOldPal)
{
::SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);
RealizePalette(hDC);
::ReleaseDC(NULL, hDC);
}
//创建位图文件
fh = CreateFile(FileName, GENERIC_WRITE,0, NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
if (fh == INVALID_HANDLE_VALUE) return FALSE;
// 设置位图文件头
bmfHdr.bfType = 0x4D42; // "BM "
dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;
bmfHdr.bfSize = dwDIBSize;
bmfHdr.bfReserved1 = 0;
bmfHdr.bfReserved2 = 0;
bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER) + (DWORD)sizeof(BITMAPINFOHEADER) + dwPaletteSize;
// 写入位图文件头
WriteFile(fh, (LPSTR)&bmfHdr, sizeof(BITMAPFILEHEADER), &dwWritten, NULL);
// 写入位图文件其余内容
WriteFile(fh, (LPSTR)lpbi, dwDIBSize, &dwWritten, NULL);
//清除
GlobalUnlock(hDib);
GlobalFree(hDib);
CloseHandle(fh);
return TRUE;
}
代码如下:void CDrawPicTextDlg::OnButton3()
{
HBITMAP hBitmap;
CBitmap cb;
CBitmap *Oldbmp;
CString InputPath, OutPutPath, TmpStr;
CDC TmpDC; m_EditInput.GetWindowText( InputPath );
m_EditOutput.GetWindowText( OutPutPath );
OutPutPath += "\\11.bmp";
m_EditText.GetWindowText( TmpStr );
hBitmap = (HBITMAP)::LoadImage(NULL, InputPath, IMAGE_BITMAP, 0, 0, LR_DEFAULTSIZE|LR_LOADFROMFILE); TmpDC.CreateCompatibleDC( GetDC() );
cb.FromHandle(hBitmap);
Oldbmp = TmpDC.SelectObject( &cb ); int nOldBKM = TmpDC.SetBkMode(TRANSPARENT);
TmpDC.SetTextColor(RGB(0, 0, 0));
TmpDC.TextOut(10, 10, TmpStr);
TmpDC.SetTextColor(RGB(255, 255, 255));
TmpDC.TextOut(11, 11, TmpStr); TmpDC.SelectObject(Oldbmp);
TmpDC.SetBkMode(nOldBKM);
cb.Attach(hBitmap); SaveBmp( hBitmap, OutPutPath );
MessageBox("ok");
}BOOL CDrawPicTextDlg::SaveBmp(HBITMAP hBitmap, CString FileName)
{
HDC hDC;
//当前分辨率下每象素所占字节数
int iBits;
//位图中每象素所占字节数
WORD wBitCount;
//定义调色板大小, 位图中像素字节大小 ,位图文件大小 , 写入文件字节数
DWORD dwPaletteSize=0, dwBmBitsSize=0, dwDIBSize=0, dwWritten=0;
//位图属性结构
BITMAP Bitmap;
//位图文件头结构
BITMAPFILEHEADER bmfHdr;
//位图信息头结构
BITMAPINFOHEADER bi;
//指向位图信息头结构
LPBITMAPINFOHEADER lpbi;
//定义文件,分配内存句柄,调色板句柄
HANDLE fh, hDib, hPal,hOldPal=NULL;
//计算位图文件每个像素所占字节数
hDC = CreateDC( "DISPLAY ", NULL, NULL, NULL);
iBits = GetDeviceCaps(hDC, BITSPIXEL) * GetDeviceCaps(hDC, PLANES);
DeleteDC(hDC);
if (iBits <= 1) wBitCount = 1;
else if (iBits <= 4) wBitCount = 4;
else if (iBits <= 8) wBitCount = 8;
else wBitCount = 24;
GetObject(hBitmap, sizeof(Bitmap), (LPSTR)&Bitmap);
bi.biSize = sizeof(BITMAPINFOHEADER);
bi.biWidth = Bitmap.bmWidth;
bi.biHeight = Bitmap.bmHeight;
bi.biPlanes = 1;
bi.biBitCount = wBitCount;
bi.biCompression = BI_RGB;
bi.biSizeImage = 0;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;
bi.biClrImportant = 0;
bi.biClrUsed = 0;
dwBmBitsSize = ((Bitmap.bmWidth * wBitCount + 31) / 32) * 4 * Bitmap.bmHeight;
//为位图内容分配内存
hDib = GlobalAlloc(GHND,dwBmBitsSize + dwPaletteSize + sizeof(BITMAPINFOHEADER));
lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);
*lpbi = bi;
// 处理调色板
hPal = GetStockObject(DEFAULT_PALETTE);
if (hPal)
{
hDC = ::GetDC(NULL);
hOldPal = ::SelectPalette(hDC, (HPALETTE)hPal, FALSE);
RealizePalette(hDC);
}
// 获取该调色板下新的像素值
GetDIBits(hDC, hBitmap, 0, (UINT) Bitmap.bmHeight, (LPSTR)lpbi + sizeof(BITMAPINFOHEADER)
+dwPaletteSize, (BITMAPINFO *)lpbi, DIB_RGB_COLORS);
//恢复调色板
if (hOldPal)
{
::SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);
RealizePalette(hDC);
::ReleaseDC(NULL, hDC);
}
//创建位图文件
fh = CreateFile(FileName, GENERIC_WRITE,0, NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
if (fh == INVALID_HANDLE_VALUE) return FALSE;
// 设置位图文件头
bmfHdr.bfType = 0x4D42; // "BM "
dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;
bmfHdr.bfSize = dwDIBSize;
bmfHdr.bfReserved1 = 0;
bmfHdr.bfReserved2 = 0;
bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER) + (DWORD)sizeof(BITMAPINFOHEADER) + dwPaletteSize;
// 写入位图文件头
WriteFile(fh, (LPSTR)&bmfHdr, sizeof(BITMAPFILEHEADER), &dwWritten, NULL);
// 写入位图文件其余内容
WriteFile(fh, (LPSTR)lpbi, dwDIBSize, &dwWritten, NULL);
//清除
GlobalUnlock(hDib);
GlobalFree(hDib);
CloseHandle(fh);
return TRUE;
}
TmpDC.TextOut(10, 10, TmpStr);
TmpDC.SetTextColor(RGB(255, 255, 255)); //白色
TmpDC.TextOut(11, 11, TmpStr);
感觉是这个的问题
FromHandle只是个静态成员函数吧~~不改变cb的值的~~CBitmap::FromHandlestatic CBitmap* PASCAL FromHandle( HBITMAP hBitmap );返回值:调用成功时返回一个指向CBitmap对象的指针,否则返回NULL。参数:
hBitmap 指定一个Windows GDI 位图的句柄。说明:
本函数在调用时指定一个Windows GDI 位图的句柄,返回一个指向CBitmap对象的指针。如果该句柄上没有相联系的CBitmap对象,则为该句柄建立一个临时CBitmap对象。该临时 CBitmap对象保持有效,直到应用在它的事件循环中出现空闲时间,此时Windows会删除所有的临时图形对象。换句话说,临时对象仅在一个 Windows消息的处理过程中有效。
=========
你检查一下这个是不是成功了。
果然是它的问题...直接复制过来用实在是很危险啊...哈哈
还有FromHandle改成Attach才对..
结.