Question

目前，我的程序在最小化和最小化（恢复/重新曝光）窗口后失去焦点而不是处理。

我已经在我的代码中添加了调试代码，以便在恢复最小化后的窗口后搜索出现的情况。

似乎正在发生的事件是SDL_WINDOWEVENT_EXPOSED。

之后，窗口重新曝光我尝试处理它;但没有任何反应。在我恢复恢复之前，窗口没有响应。

这是我的代码：

void GPE_Renderer::handle_events(SDL_Event& e)
{
     //Window event occured
    if( e.type == SDL_WINDOWEVENT )
    {
        //Caption update flag
        switch( e.window.event )
        {
            //Get new dimensions and repaint on window size change
            case SDL_WINDOWEVENT_SIZE_CHANGED:
            case SDL_WINDOWEVENT_RESIZED:
                if( isMinimized)
                {
                    SDL_RestoreWindow(gpeWindow);
                    //SDL_SetWindowSize(gpeWindow,mWidth,mHeight);
                    rWidth = mWidth;
                    rHeight = mHeight;
                    isMinimized = false;
                    clear_renderer();
                    record_error("Window unminimized");
                }
                else
                {
                    if( e.window.data1>0 && e.window.data2 > 0)
                    {
                        mWidth = rWidth = e.window.data1;
                        mHeight = rHeight = e.window.data2;
                        isMinimized = false;
                        record_error("Window reiszed with proper data");
                    }
                    else
                    {
                        rWidth = mWidth;
                        rHeight = mHeight;
                        record_error("Window resize with improper data");
                    }
                }
                WINDOW_WAS_JUST_RESIZED = true;
            break;
            case SDL_WINDOWEVENT_MINIMIZED:
                isMinimized = true;
                isResized = true;
                mWidth = rWidth;
                mHeight = rHeight;
                WINDOW_WAS_JUST_RESIZED = true;
                record_error("Window minimized");
            break;
            case SDL_WINDOWEVENT_ENTER:

            break;
            case SDL_WINDOWEVENT_EXPOSED:
                if( isMinimized)
                {
                    isMinimized = false;
                    WINDOW_WAS_JUST_RESIZED = true;
                    SDL_SetWindowSize(gpeWindow,mWidth,mHeight);
                    SCREEN_WIDTH =  rWidth = mWidth;
                    SCREEN_HEIGHT = rHeight = mHeight;
                    clear_renderer();
                    record_error("Window unminimized from being exposed!");
                 }
                else
                {
                    record_error("Window exposed!!!!");
                }
            break;
            case SDL_WINDOWEVENT_LEAVE:
            break;
            case SDL_WINDOWEVENT_FOCUS_GAINED:
                SDL_SetWindowTitle(gpeWindow,"[Game Pencil Engine]");
            break;
            case SDL_WINDOWEVENT_FOCUS_LOST:
                SDL_SetWindowTitle(gpeWindow,"*Out of Focus*Game Pencil Engine");
            break;
            case SDL_WINDOWEVENT_CLOSE:
            break;
            case SDL_WINDOWEVENT_RESTORED:
                if( isMinimized)
                {
                    //SDL_SetWindowSize(gpeWindow,mWidth,mHeight);
                    rWidth = mWidth;
                    rHeight = mHeight;
                    isMinimized = false;
                    record_error("Window restored and unminimized");
                }
                else
                {
                    rWidth = mWidth = MIN_WINDOW_WIDTH;
                    rHeight = mHeight = MIN_WINDOW_HEIGHT;
                    record_error("Window restored.");
                }
                isResized = true;
                WINDOW_WAS_JUST_RESIZED = true;
            break;
            case SDL_WINDOWEVENT_NONE:
            break;
            default:
            break;
        }
    }
}

Answer 1

因此，此时似乎必须手动恢复窗口（并且最大化以获得正常效果）。

这是我在检查屏幕是否最小化后在SDL_WindowEvent_Exposed案例中添加的内容：

我修好了。

显然我必须恢复窗口。

我在expose事件中添加了这些行（在检查miniimize之后），这有效：

SDL_RestoreWindow(gpeWindow);
SDL_MaximizeWindow(gpeWindow);
SDL_GetWindowSize(gpeWindow,&mWidth,&mHeight);

无法在SDL 2.x中成功取消最小化窗口

1 个答案: