数组转bitmap mfc
时间: 2024-11-15 09:25:36 浏览: 18
在MFC (Microsoft Foundation Classes) 中,将数组转换为Bitmap通常涉及到两个步骤:首先创建一个位图对象,然后填充该对象的数据。以下是一个简化的示例:
```cpp
// 假设你有一个RGB颜色值的数组
std::vector<RGBTRIPLE> colorArray;
// 创建一个Bitmap大小与其数据相匹配的DC(设备上下文)
CDC dc;
HBITMAP hBitmap = NULL;
dc.CreateCompatibleBitmap(NULL, width, height); // width和height是你想要的Bitmap大小
// 将DC关联到新创建的位图上
hBitmap = dc.SelectObject(hBitmap);
try {
// 遍历数组并绘制每个像素
for (int i = 0; i < colorArray.size(); i++) {
RGBTRIPLE pixel = colorArray[i];
dc.SetPixel(i, j, RGB(pixel.rgbBlue, pixel.rgbGreen, pixel.rgbRed)); // 假设你是从左到右、从上到下填充像素
}
}
finally {
// 确保正确地释放资源
if (hBitmap != NULL)
DeleteObject(hBitmap);
dc.DeleteDC();
}
// 此时hBitmap存储了你的图像数据,你可以将其保存为文件或显示出来
```
请注意,这个过程假设你已经处理了异常,并且需要在适当的时候处理内存分配失败等潜在问题。如果你有ARGB格式或其他格式的颜色值,你需要相应地调整SetPixel函数的参数。
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