user-0 提问: C语言如何将16进制数组转成图形图像

回复:
user: user-0
content: 继续顶   赵4老师 没有答在我的问题点上

user: user-1
content: SetPixel The SetPixel function sets the pixel at the specified coordinates to the specified color.   COLORREF SetPixel(   HDC hdc,           // handle to device context   int X,             // x-coordinate of pixel   int Y,             // y-coordinate of pixel   COLORREF crColor   // pixel color );   Parameters hdc  Handle to the device context.  X  Specifies the x-coordinate, in logical units, of the point to be set.  Y  Specifies the y-coordinate, in logical units, of the point to be set.  crColor  Specifies the color to be used to paint the point.  Return Values If the function succeeds, the return value is the RGB value that the function sets the pixel to. This value may differ from the color specified by crColor; that happens when an exact match for the specified color cannot be found.  If the function fails, the return value is –1.   Windows NT: To get extended error information, callGetLastError.   Remarks The function fails if the pixel coordinates lie outside of the current clipping region.  Not all devices support the SetPixel function. For more information, see GetDeviceCaps.   QuickInfo   Windows NT: Requires version 3.1 or later.   Windows: Requires Windows 95 or later.   Windows CE: Requires version 1.0 or later.   Header: Declared in wingdi.h.   Import Library: Use gdi32.lib.  See Also Bitmaps Overview, Bitmap Functions, GetDeviceCaps, GetPixel, SetPixelV     Printer: Printing Sample  Click to open or copy the files for the Printer sample.  The Printer sample shows how to print using both the CreateDC and the PrinterDlg methods for acquiring a printer HDC. The user is allowed to print different graphical objects, as well as a complete device font set. An "Abort" dialog box is also implemented.   The Printer sample also does the following:   Provides complete device capabilities for all printers and the display.   Provides information (levels 1 and 2) returned by a call to EnumPrinters.   Shows how to enumerate fonts for a particular DC.   Illustrates differences among the various mapping modes.   Demonstrates GDI features.  Building SDK Samples   This sample uses the following keywords:  createdc; deletedc; errmsgbox; getlasterror; getstringres; getstringres2; isdbcsleadbyte; mainwndproc; makeintresource; my_mbslen; outnum; outstr; outstr2; outstr3; printdlg; printthread; registerclass; strcat; winmain; wsprintf

user: user-0
content: 再顶~~~~~~

user: user-0
content: 自顶顶顶顶！！！！

user: user-2
content: 引用 6 楼 zhao4zhong1 的回复:用SetPixel将数组中的值逐像素点到内存位图中。内存位图保存到.bmp参考下面： #pragma comment(lib,"gdi32") #include <windows.h> #include <stdio.h>  int main() {     const DWORD uWidth = 18 + 17 * 256, uHeight = 18 + 17 * 128;      PBITMAPINFO pbmi = (PBITMAPINFO) LocalAlloc (LPTR, sizeof (BITMAPINFOHEADER) + sizeof (RGBQUAD) * 2);     pbmi->bmiHeader.biSize = sizeof (BITMAPINFOHEADER);     pbmi->bmiHeader.biWidth = uWidth;     pbmi->bmiHeader.biHeight = uHeight;     pbmi->bmiHeader.biPlanes = 1;     pbmi->bmiHeader.biBitCount = 1;     pbmi->bmiHeader.biSizeImage = ((uWidth + 31) & ~31) / 8 * uHeight;     pbmi->bmiColors[0].rgbBlue = 0;     pbmi->bmiColors[0].rgbGreen = 0;     pbmi->bmiColors[0].rgbRed = 0;     pbmi->bmiColors[1].rgbBlue = 255;     pbmi->bmiColors[1].rgbGreen = 255;     pbmi->bmiColors[1].rgbRed = 255;      HDC hDC = CreateCompatibleDC (0);     void * pvBits;     HBITMAP hBitmap = CreateDIBSection (hDC, pbmi, 0, &pvBits, NULL, 0);     SelectObject (hDC, hBitmap);     HFONT hFont = CreateFont (16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "宋体"); //  HFONT hFont = CreateFont (16, 0, 0, 0, 0, 0, 0, 0, SHIFTJIS_CHARSET, 0, 0, 0, 0, "宋体");     SelectObject (hDC, hFont);     BitBlt (hDC, 0, 0, uWidth, uHeight, NULL, 0, 0, WHITENESS);      char c[4];     int i, j;     for (i = 128; i < 256; i++) {         sprintf (c, "%02X", i);         TextOut (hDC, 1, (i - 127) * 17 + 1, c, 2);     }     for (j = 0; j < 256; j++) {         sprintf (c, "%02X", j);         TextOut (hDC, (j + 1)* 17 + 1, 1, c, 2);     }     for (i = 128; i < 256; i++) {         for (j = 0; j < 256; j++) {             c[0] = (char) i;             c[1] = (char) j;             TextOut (hDC, (j + 1) * 17 + 1, (i - 127) * 17 + 1, c, 2);         }     }     for (i = 0; i < 130; i++) {         MoveToEx (hDC, 0, i * 17, NULL);         LineTo (hDC, uWidth, i * 17);     }     for (j = 0; j < 258; j++) {         MoveToEx (hDC, j * 17, 0, NULL);         LineTo (hDC, j * 17, uHeight);     }      BITMAPFILEHEADER bmfh;     bmfh.bfType = *(PWORD) "BM";     bmfh.bfReserved1 = 0;     bmfh.bfReserved2 = 0;     bmfh.bfOffBits = sizeof (BITMAPFILEHEADER) + sizeof (BITMAPINFOHEADER) + sizeof (RGBQUAD) * 2;     bmfh.bfSize = bmfh.bfOffBits + pbmi->bmiHeader.biSizeImage;      HANDLE hFile = CreateFile ("goal.bmp", GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0);     if (hFile != INVALID_HANDLE_VALUE) {         DWORD dwWritten;         WriteFile (hFile, &bmfh, sizeof (BITMAPFILEHEADER), &dwWritten, NULL);         WriteFile (hFile, pbmi, sizeof (BITMAPINFOHEADER) + sizeof (RGBQUAD) * 2, &dwWritten, NULL);         WriteFile (hFile, pvBits, pbmi->bmiHeader.biSizeImage, &dwWritten, NULL);          CloseHandle (hFile);     }      DeleteObject (hFont);     DeleteObject (hBitmap);     DeleteDC (hDC);     LocalFree (pbmi);      return 0; } 围观。。。。。

user: user-1
content: 用SetPixel将数组中的值逐像素点到内存位图中。内存位图保存到.bmp参考下面： #pragma comment(lib,"gdi32") #include <windows.h> #include <stdio.h>  int main() {     const DWORD uWidth = 18 + 17 * 256, uHeight = 18 + 17 * 128;      PBITMAPINFO pbmi = (PBITMAPINFO) LocalAlloc (LPTR, sizeof (BITMAPINFOHEADER) + sizeof (RGBQUAD) * 2);     pbmi->bmiHeader.biSize = sizeof (BITMAPINFOHEADER);     pbmi->bmiHeader.biWidth = uWidth;     pbmi->bmiHeader.biHeight = uHeight;     pbmi->bmiHeader.biPlanes = 1;     pbmi->bmiHeader.biBitCount = 1;     pbmi->bmiHeader.biSizeImage = ((uWidth + 31) & ~31) / 8 * uHeight;     pbmi->bmiColors[0].rgbBlue = 0;     pbmi->bmiColors[0].rgbGreen = 0;     pbmi->bmiColors[0].rgbRed = 0;     pbmi->bmiColors[1].rgbBlue = 255;     pbmi->bmiColors[1].rgbGreen = 255;     pbmi->bmiColors[1].rgbRed = 255;      HDC hDC = CreateCompatibleDC (0);     void * pvBits;     HBITMAP hBitmap = CreateDIBSection (hDC, pbmi, 0, &pvBits, NULL, 0);     SelectObject (hDC, hBitmap);     HFONT hFont = CreateFont (16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "宋体"); //  HFONT hFont = CreateFont (16, 0, 0, 0, 0, 0, 0, 0, SHIFTJIS_CHARSET, 0, 0, 0, 0, "宋体");     SelectObject (hDC, hFont);     BitBlt (hDC, 0, 0, uWidth, uHeight, NULL, 0, 0, WHITENESS);      char c[4];     int i, j;     for (i = 128; i < 256; i++) {         sprintf (c, "%02X", i);         TextOut (hDC, 1, (i - 127) * 17 + 1, c, 2);     }     for (j = 0; j < 256; j++) {         sprintf (c, "%02X", j);         TextOut (hDC, (j + 1)* 17 + 1, 1, c, 2);     }     for (i = 128; i < 256; i++) {         for (j = 0; j < 256; j++) {             c[0] = (char) i;             c[1] = (char) j;             TextOut (hDC, (j + 1) * 17 + 1, (i - 127) * 17 + 1, c, 2);         }     }     for (i = 0; i < 130; i++) {         MoveToEx (hDC, 0, i * 17, NULL);         LineTo (hDC, uWidth, i * 17);     }     for (j = 0; j < 258; j++) {         MoveToEx (hDC, j * 17, 0, NULL);         LineTo (hDC, j * 17, uHeight);     }      BITMAPFILEHEADER bmfh;     bmfh.bfType = *(PWORD) "BM";     bmfh.bfReserved1 = 0;     bmfh.bfReserved2 = 0;     bmfh.bfOffBits = sizeof (BITMAPFILEHEADER) + sizeof (BITMAPINFOHEADER) + sizeof (RGBQUAD) * 2;     bmfh.bfSize = bmfh.bfOffBits + pbmi->bmiHeader.biSizeImage;      HANDLE hFile = CreateFile ("goal.bmp", GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0);     if (hFile != INVALID_HANDLE_VALUE) {         DWORD dwWritten;         WriteFile (hFile, &bmfh, sizeof (BITMAPFILEHEADER), &dwWritten, NULL);         WriteFile (hFile, pbmi, sizeof (BITMAPINFOHEADER) + sizeof (RGBQUAD) * 2, &dwWritten, NULL);         WriteFile (hFile, pvBits, pbmi->bmiHeader.biSizeImage, &dwWritten, NULL);          CloseHandle (hFile);     }      DeleteObject (hFont);     DeleteObject (hBitmap);     DeleteDC (hDC);     LocalFree (pbmi);      return 0; }

user: user-0
content: 续顶。。。。。。