mirror of
https://github.com/HIllya51/LunaTranslator.git
synced 2024-12-29 16:44:13 +08:00
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
#include"define.h"
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#include"BMP.h"
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void* extracticon2data(const wchar_t*name,size_t *l){
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HICON h1, h2;
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ExtractIconExW(name, 0, &h1, &h2, 1);
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if(h1==0)return 0;
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HDC hdc = GetDC(NULL);
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HDC memDC = CreateCompatibleDC(hdc);
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ICONINFO iconInfo;
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GetIconInfo(h1, &iconInfo);
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int iconWidth = iconInfo.xHotspot * 2;
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int iconHeight = iconInfo.yHotspot * 2;
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HBITMAP hBitmap = CreateCompatibleBitmap(hdc, iconWidth, iconHeight);
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HBITMAP hOldBitmap = (HBITMAP)SelectObject(memDC, hBitmap);
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DrawIconEx(memDC, 0, 0, h1, iconWidth, iconHeight, 0, NULL, DI_NORMAL);
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SelectObject(memDC, hOldBitmap);
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DeleteDC(memDC);
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BMP bmpp(iconWidth,iconHeight);
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BITMAP bmp;
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GetObject(hBitmap, sizeof(BITMAP), &bmp);
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bmpp.bmp_info_header.bit_count=bmp.bmBitsPixel;
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auto dwSize = bmp.bmWidthBytes * bmp.bmHeight;
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bmpp.data.resize(dwSize);
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auto dataptr=bmpp.data.data();
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GetBitmapBits(hBitmap, dwSize, dataptr);
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DeleteObject(hBitmap);
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std::vector<LONG>tmp;
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tmp.resize(bmp.bmWidthBytes);
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if(bmp.bmWidthBytes==bmp.bmHeight*4){
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bool allalpha0=true;
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for(int i=0;i<bmpp.data.size()/4;i++){
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if(dataptr[i*4+3]!=0){
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allalpha0=false;
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break;
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}
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}
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if(allalpha0){
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for(int i=0;i<bmpp.data.size()/4;i++){
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dataptr[i*4+3]=0xff;
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}
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}
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}
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for (int i = 0; i < bmp.bmHeight / 2; i++) {
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memcpy(tmp.data(), dataptr + i * bmp.bmWidthBytes, bmp.bmWidthBytes);
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memcpy(dataptr + i * bmp.bmWidthBytes, dataptr + (bmp.bmHeight - 1 - i) * bmp.bmWidthBytes, bmp.bmWidthBytes);
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memcpy( dataptr + (bmp.bmHeight - 1 - i) * bmp.bmWidthBytes, tmp.data(), bmp.bmWidthBytes);
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}
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std::string data;
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bmpp.write_tomem(data);
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auto sdata=new char[data.size()];
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memcpy(sdata,data.data(),data.size());
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*l=data.size();
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return sdata;
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} |