Question

我有两个窗户，一个在另一个较大的顶部。首先创建的窗口将始终位于顶部。 BringWindowToTop(hWnd)和SetWindowPos(hWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);都不做任何事情！我也一直在尝试HWND_TOPMOST和HWND_BOTTOM。

似乎将一个窗口置于另一个窗口之上的唯一方法是正确的创建顺序。但这不是我需要的，我需要动态改变顺序。有人知道是什么原因造成的吗？这些只是旧的CreateWindow()个实例，它们都具有相同的父级。任何在互联网上的搜索都没有收需要一些专家的帮助！

#include <windows.h>

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

HWND make_child(HWND Parent, int x, int y, int color) {
    HINSTANCE hInstance = 0;
    MSG msg          = {0};
    WNDCLASS wc      = {0}; 
    wc.lpfnWndProc   = WndProc;
    wc.hInstance     = hInstance;
    wc.hbrBackground = CreateSolidBrush(color);//(HBRUSH)(COLOR_WINDOWFRAME);
    wc.lpszClassName = (LPCSTR)L"mychildwin";
    RegisterClass(&wc);
    return CreateWindow("edit",(LPCSTR)"child", WS_BORDER|WS_CHILD|WS_VISIBLE, x,y,100,100,Parent,0,hInstance,NULL);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow){
    MSG msg          = {0};
    WNDCLASS wc      = {0}; 
    wc.lpfnWndProc   = WndProc;
    wc.hInstance     = hInstance;
    wc.hbrBackground = CreateSolidBrush(0xff8080);
    wc.lpszClassName = (LPCSTR)L"minwindowsapp";
    if (!RegisterClass(&wc))  return 1;
    HWND W = CreateWindow(wc.lpszClassName,(LPCSTR)L"Minimal Windows Application", WS_OVERLAPPEDWINDOW|WS_VISIBLE, 0,0,640,480,0,0,hInstance,NULL);
    HWND A = make_child(W, 10, 10, 0x88ff00);
    HWND B = make_child(W, 70, 70, 0x8888ff);
    BringWindowToTop(B);
    SetWindowPos(B, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);

    //REAL PROBLEM WAS HERE: A second call to SetWindowPos
     SetWindowPos(handle, 0, 0, 0, new_width, new_height,
      SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOACTIVATE);
    // adding SWP_NOZORDER fixed it..

    while(GetMessage(&msg, NULL, 0, 0) > 0) DispatchMessage(&msg);
    return 0;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
    switch(message) {
        case WM_CLOSE: PostQuitMessage(0); break;
        default: return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

Answer 1

根据MSDN - 文档，还可以将窗口句柄传递给您希望在其后插入窗口的窗口。

BOOL WINAPI SetWindowPos(
  _In_      HWND hWnd,
  _In_opt_  HWND hWndInsertAfter,
  _In_      int X,
  _In_      int Y,
  _In_      int cx,
  _In_      int cy,
  _In_      UINT uFlags
);

其中hWndInsertAfter是窗口的句柄，窗口应位于 AFTER 之后。你试过这个吗？

Answer 2

好吧，也许有人会发现它真的很有用。因为真正的问题是SetWindowPos和BringWindowToTo都运行良好，但之后在我真正的应用程序中我再次调用SetWindowPos来移动组件一点点，它正在拧紧 ZOrder 了！

所以我在SWP_NOZORDER的第二次调用中添加了SetWindowPos。

WinAPI ZOrder遇到了麻烦

2 个答案: