使用WIN32 API设置没有资源的程序图标 [英] Setting program icon without resources using the WIN32 API

问题描述

我正在使用Visual Studio的快速版本。因此，使用函数调用MAKEINTRESOURCE是不成问题的。我尝试通过覆盖getAdditionalClassInfo函数来设置应用程序图标。

I am working with the express version of Visual Studio. Therefore, using functions calls to MAKEINTRESOURCE are out of the question. I am tryting to set the application icon by overriding the getAdditionalClassInfo function.

WNDCLASSW *Robot::getAdditionalClassInfo(void) const {
    WNDCLASSW *wc = Window::getAdditionalClassInfo();
    HANDLE hIcon = LoadImage(NULL, L"imagepath/image.png", 32, 32, LR_LOADFROMFILE);

    wc->hIcon = .....;
    return wc;
}

有没有人知道如何设置此图标而不使用资源？ p>

Does anyone know how I can set this icon WITHOUT using a resource?

推荐答案

我的建议，如果你想使用PNG，并能够改变图标，就是使用FreeImage加载它。然后你可以使用FreeImage将它很容易地转换为一个标准的HBITMAP。

My suggestion, if you'd like to use PNGs, and be able to change the icon, is to use FreeImage to load it. Then you can use FreeImage to convert it to a standard HBITMAP fairly easily.

如果你使用一个实际的图标文件，你可以做以下一旦窗口已创建：

If you're fine with using an actual icon file, you can do the following once the window has been created:

HANDLE hIcon = LoadImage(0, _T("imagepath/image.ico"), IMAGE_ICON, 0, 0, LR_DEFAULTSIZE | LR_LOADFROMFILE);
if (hIcon) {
    //Change both icons to the same icon handle.
    SendMessage(hwnd, WM_SETICON, ICON_SMALL, hIcon);
    SendMessage(hwnd, WM_SETICON, ICON_BIG, hIcon);

    //This will ensure that the application icon gets changed too.
    SendMessage(GetWindow(hwnd, GW_OWNER), WM_SETICON, ICON_SMALL, hIcon);
    SendMessage(GetWindow(hwnd, GW_OWNER), WM_SETICON, ICON_BIG, hIcon);
}

您可以从 getAdditionalClassInfo 并将其设置为 hIcon 。

You can likely call the similar function from within your getAdditionalClassInfo and setting it to the hIcon.

这篇关于使用WIN32 API设置没有资源的程序图标的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！