Question

与how-to-resize-a-pixmap-with-xlib相关正如在上述主题中得出的结论，不可能调整像素图的大小。将pixmap复制到窗口后，窗口怎么样？在下面的示例中，一切都很好，直到调整窗口大小。图标在复制到窗口后绘制，但在调整窗口大小后丢失。我在这里遗漏了什么或者没有办法调整pixmap内容的大小吗？

上下文：尝试将客户端图标添加到dwm的tab patch.

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unsigned int px_w, px_h, dummy_i;
Window icon_w, dummy_w;

Pixmap getWindowIcon (Window *w) {
    XWMHints *wmh;
    Pixmap pxmp = NULL;

    if(wmh = XGetWMHints(dpy, w)) {
        pxmp = wmh->icon_pixmap;
        XFree(wmh);
    }

    return pxmp;
}

Pixmap client_icon = getWindowIcon(current_window); // current_window is already existing Window instance
// find the pixmap dimensions and store in px_w, px_h:
XGetGeometry(dpy, client_icon, &dummy_w, &dummy_i, &dummy_i, &px_w, &px_h, &dummy_i, &dummy_i );

icon_w = XCreateSimpleWindow(dpy, root_window, 0, 0, px_w, px_h, 0, 0, color);
XMapRaised(dpy, icon_w);

// copy pixmap to the newly created win:
XCopyArea(dpy, client_icon, icon_w, cellDC.gc, 0, 0, px_w, px_h, 0, 0);

// resize - after which the pixmap is lost in the window:
XResizeWindow(dpy, icon_w, px_w+1, px_h+1);

Xlib：调整包含像素图的窗口

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