怎么把剪贴板中的位图保存成文件？
怎么把剪贴板中的位图保存成文件？
谢谢。
[解决办法]
HWND hWnd = GetSafeHwnd(); // 获取安全窗口句柄::OpenClipboard(hWnd); // 打开剪贴板HANDLE hBitmap = ::GetClipboardData(CF_BITMAP); // 获取剪贴板数据句柄HDC hDC = ::GetDC(hWnd); // 获取设备环境句柄HDC hdcMem = CreateCompatibleDC(hDC); // 创建与设备相关的内存环境SelectObject(hdcMem, hBitmap); // 选择对象SetMapMode(hdcMem, GetMapMode(hDC)); // 设置映射模式BITMAP bm; // 得到位图对象GetObject(hBitmap, sizeof(BITMAP), &bm);BitBlt(hDC, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY); //位图复制::ReleaseDC(hWnd, hDC); // 释放设备环境句柄DeleteDC(hdcMem); // 删除内存环境::CloseClipboard(); // 关闭剪贴板
[解决办法]
HANDLE hClip;
CString pBuf;
if(OpenClipboard())//打开剪贴板
{
if(IsClipboardFormatAvailable(CF_TEXT))//判断剪贴板上的数据
{
hClip = GetClipboardData(CF_TEXT);//获取剪贴板内容
pBuf = (char*)GlobalLock(hClip);
GlobalUnlock(hClip);
}
CloseClipboard();//关闭剪贴板
}
return pBuf;
[解决办法]
// test_clip_bmp.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include "afxwin.h"int SaveHBITMAP( HBITMAP hB, char * lpsz_FileName ) { BITMAP csBitmap; int nRetValue = GetObject(hB, sizeof(csBitmap), &csBitmap); unsigned long n_BPP, n_Width, n_Height; if (nRetValue) { n_Width = (long)csBitmap.bmWidth; n_Height = (long)csBitmap.bmHeight; n_BPP = (long)csBitmap.bmBitsPixel; long sz = csBitmap.bmWidth*csBitmap.bmHeight*(csBitmap.bmBitsPixel>>3); csBitmap.bmBits = (void *) new BYTE[ sz ]; GetBitmapBits((HBITMAP)hB, sz, csBitmap.bmBits ); printf( "Proceeding Image %dx%d, BPP=%d", n_Width, n_Height, n_BPP, csBitmap.bmBits ); } else { printf( "Invalid Object in Clipboard Buffer" ); return 1; } DWORD *lp_Canvas = new DWORD[ n_Width * n_Height]; if ( n_BPP == 32 ) { for ( unsigned long y = 0; y < n_Height; y ++ ) { for ( unsigned long x = 0; x < n_Width; x ++ ) { RGBQUAD * rgb = ((RGBQUAD *) ((char*)(csBitmap.bmBits) + csBitmap.bmWidthBytes*y + x*sizeof(DWORD)) ); lp_Canvas[ (n_Height - 1 - y)*n_Width + x ] = *((DWORD *)rgb); } } } else if ( n_BPP == 24 ) { for ( unsigned long y = 0; y < n_Height; y ++ ) { for ( unsigned long x = 0; x < n_Width; x ++ ) { RGBTRIPLE rgbi = *((RGBTRIPLE *) ((char*)(csBitmap.bmBits) + csBitmap.bmWidthBytes*y + x*3) ); RGBQUAD rgbq; rgbq.rgbRed = rgbi.rgbtRed; rgbq.rgbGreen = rgbi.rgbtGreen; rgbq.rgbBlue = rgbi.rgbtBlue; lp_Canvas[ (n_Height - 1 - y)*n_Width + x ] = *((DWORD *)(&rgbq)); } } } else { // here I could handle other resultions also, but I think it is // too obvoius to add them here.... } unsigned long n_Bits = 32; FILE *pFile = fopen(lpsz_FileName, "wb"); if(pFile == NULL) { printf("File Cannot Be Written"); return 1; } // save bitmap file header BITMAPFILEHEADER fileHeader; fileHeader.bfType = 0x4d42; fileHeader.bfSize = 0; fileHeader.bfReserved1 = 0; fileHeader.bfReserved2 = 0; fileHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER); fwrite( (char*)&fileHeader, sizeof(fileHeader), 1, pFile ); // save bitmap info header BITMAPINFOHEADER infoHeader; infoHeader.biSize = sizeof(infoHeader); infoHeader.biWidth = n_Width; infoHeader.biHeight = n_Height; infoHeader.biPlanes = 1; infoHeader.biBitCount = ( unsigned short )( n_Bits & 0xffff ); infoHeader.biCompression = BI_RGB; infoHeader.biSizeImage = 0; infoHeader.biXPelsPerMeter = 0; infoHeader.biYPelsPerMeter = 0; infoHeader.biClrUsed = 0; infoHeader.biClrImportant = 0; fwrite( (char*)&infoHeader, sizeof(infoHeader), 1, pFile ); fwrite( (char*)lp_Canvas, 1, (n_Bits >> 3)*n_Width*n_Height, pFile ); fclose( pFile ); return 0;}int main( int, char ** ) { if (!::IsClipboardFormatAvailable(CF_BITMAP)) { printf( "Nothing in BMP buffer" ); return 0; } if ( OpenClipboard ( 0 ) ) { HBITMAP hBitmap = (HBITMAP)GetClipboardData( CF_BITMAP ); CloseClipboard(); if ( hBitmap ) { GlobalLock( hBitmap ); char outfile[255] = "clipboard.bmp"; SaveHBITMAP( hBitmap, outfile ); GlobalUnlock( hBitmap ); } else { printf( "Nothing in buffer" ); } } else { printf( "Windows Clipboard cannot be opened" ); } return 0;}