如何在taskmanager中更改应用程序图标 [英] How to change app icon in taskmanager

问题描述

我有一些Windows应用程序可以改变他的图标，使用win api函数

  SendMessage（hwnd，WM_SETICON，ICON_BIG， icon_handle）; 
 SendMessage（hwnd，WM_SETICON，ICON_SMALL，icon_handle）; 
 
 Shell_NotifyIcon（...） 
 

它会更改任务栏和托盘（任务栏通知区域）中的图标，但 taskmanager 仍未更改。
如何更改taskmanager中的图标？是否可以？

解决方案

从这个答案

重要的是更改所有图标，包括小和大的应用程序：





  //将两个图标更改为同一个图标手柄。 
 SendMessage（hwnd，WM_SETICON，ICON_SMALL，hIcon）; 
 SendMessage（hwnd，WM_SETICON，ICON_BIG，hIcon）; 
 
 //这将确保应用程序图标也被更改。 
 SendMessage（GetWindow（hwnd，GW_OWNER），WM_SETICON，ICON_SMALL，hIcon）; 
 SendMessage（GetWindow（hwnd，GW_OWNER），WM_SETICON，ICON_BIG，hIcon）; 
  
 
 
 
 
 
 
  EDIT  / p> 
 
 
根据此SO回答，图标需要由图标编辑器创建的.ICO文件; 此SO文章还提到您需要将消息发送到最顶层的窗口
 
 
 
我可以在任务栏，alt-tab和任务管理器中切换图标
 
a）创建一个图标使用Visual Studio资源编辑器
 
b）使用 HICON hIcon = LoadIcon（GetModuleHandle（NULL），MAKEINTRESOURCE（IDI_ICON1））;  
 
c）发送 WM_SETICON，ICON_SMALL 到最上面的窗口 - 我使用的是MFC SDI应用程序，所以我将消息发送到主框架窗口c $ c> AfxGetApp（） - > m_pMainWnd ）
 
 
 
注意： WM_SETICON的MSDN文档提及
 
 
系统不会复制图标。在销毁窗口之前不要销毁图标
 
 
 
I have some windows application that can change his icon, using win api functions
SendMessage(hwnd, WM_SETICON, ICON_BIG, icon_handle);
SendMessage(hwnd, WM_SETICON, ICON_SMALL, icon_handle);

Shell_NotifyIcon(...);
It changes icon in taskbar and tray (taskbar notification area), but icon in taskmanager still not changed.
How can I change icon in taskmanager? Is it possible?
解决方案
From this SO answer

  
It's important to change all icons, including the application, both small and big:


//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);




EDIT:

According to the this SO answer, the icon needs to be a .ICO file created by an icon editor; this SO article also mentions that you need to send the message to the top-most window of the application.

I could switch the icon in the task bar, alt-tab and in the task manager by

a) creating an icon using the Visual Studio Resource Editor

b) loading the icon with code like HICON hIcon = LoadIcon(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_ICON1));

c) sending WM_SETICON, ICON_SMALL to the topmost window -- I was using a MFC SDI application, so I sent the message to the main frame window (AfxGetApp()->m_pMainWnd)

NOTE: a comment in the MSDN Docs for WM_SETICON mentions

  
The system does not make a copy of the icon. Do not destroy the icon before destroying the window


                        
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