I created a dialog in the UI thread way, I think in this dialog in the main window of variable real-time changes, I think of the getparent () function, but the getparent () function returns to is null, so is there any other way to get to the main window of a variable's value?

CodePudding user response:

Multiple Threads in the User Interface of http://msdn.microsoft.com/zh-cn/library/ms810439.aspx

CodePudding user response:

Many solutions, such as the parent window of the UI put global variable timer timer, let the child window reading,
Send a message to the parent window or child window, the message each other, WM_USER + 1,
The child thread operation is the main thread of the UI error prone, and is not allowed

CodePudding user response:

"But getparent () function returns the empty value"
The child window is not without parent window?
FindWindow looking for the main window.

CodePudding user response:

I don't really understand this, and asked

CodePudding user response:

Child window is the main window of the child?

CodePudding user response:

In the progress of the child window, to get the main window class pointer

CodePudding user response:

When you create a thread, the HWND of the dialog box window handle as thread parameters can be passed to the thread,

CodePudding user response:

Handle to the window structure into a thread parameters or use global variables