1/* 2 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26#include "awt_IconCursor.h" 27 28/* common code used by awt_Frame.cpp and awt_Cursor.cpp */ 29 30HBITMAP create_BMP(HWND hW,int* imageData,int nSS, int nW, int nH) 31{ 32 Bitmapheader bmhHeader; 33 HDC hDC; 34 char *ptrImageData; 35 HBITMAP hbmpBitmap; 36 HBITMAP hBitmap; 37 38 int nNumChannels = 3; 39 40 if (!hW) { 41 hW = ::GetDesktopWindow(); 42 } 43 hDC = ::GetDC(hW); 44 if (!hDC) { 45 return NULL; 46 } 47 48 memset(&bmhHeader, 0, sizeof(Bitmapheader)); 49 bmhHeader.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); 50 bmhHeader.bmiHeader.biWidth = nW; 51 bmhHeader.bmiHeader.biHeight = -nH; 52 bmhHeader.bmiHeader.biPlanes = 1; 53 54 bmhHeader.bmiHeader.biBitCount = 24; 55 bmhHeader.bmiHeader.biCompression = BI_RGB; 56 57 hbmpBitmap = ::CreateDIBSection(hDC, (BITMAPINFO*)&(bmhHeader), 58 DIB_RGB_COLORS, 59 (void**)&(ptrImageData), 60 NULL, 0); 61 int *srcPtr = imageData; 62 char *dstPtr = ptrImageData; 63 if (!dstPtr) { 64 ReleaseDC(hW, hDC); 65 return NULL; 66 } 67 for (int nOutern = 0; nOutern < nH; nOutern++ ) { 68 for (int nInner = 0; nInner < nSS; nInner++ ) { 69 dstPtr[2] = (*srcPtr >> 0x10) & 0xFF; 70 dstPtr[1] = (*srcPtr >> 0x08) & 0xFF; 71 dstPtr[0] = *srcPtr & 0xFF; 72 73 srcPtr++; 74 dstPtr += nNumChannels; 75 } 76 } 77 78 // convert it into DDB to make CustomCursor work on WIN95 79 hBitmap = CreateDIBitmap(hDC, 80 (BITMAPINFOHEADER*)&bmhHeader, 81 CBM_INIT, 82 (void *)ptrImageData, 83 (BITMAPINFO*)&bmhHeader, 84 DIB_RGB_COLORS); 85 86 ::DeleteObject(hbmpBitmap); 87 ::ReleaseDC(hW, hDC); 88 ::GdiFlush(); 89 return hBitmap; 90} 91 92void destroy_BMP(HBITMAP hBMP) 93{ 94 if (hBMP) { 95 ::DeleteObject(hBMP); 96 } 97} 98