How to modify the display color of its corresponding control (such as a button) through the pointer?

yyy1010

For example: I have obtained the "pointer" of a (CButton) button. How can I use this pointer to modify the display color of the corresponding button?

1002716

I think it can be achieved by subclassing the control in response to ON_CtlColor

ihatelose

First subclass the control, like the response message upstairs. Add a flag, judge the flag in the response function, and change the color when the conditions are met. When you need to change, get the pointer and change the flag.

yyy1010

All I can control is this pointer!

addforever

Subclassing can
The button color should be self-painted
OnCtlColor cannot be changed

yyy1010

The button I'm talking about is the button of other programs, not the current program.

addforever

First insert the program remotely, and then change it in the same way

yyy1010

?? Insert the program remotely?? Have not tried, what do you mean?

xixihaha

GetDC
Then SetBKColor()

afanti_007

Change the button color, as if only subclassing