in MFC development, how to change the picture content of pictureBox by clicking a button?
this property in pictureBOX:
how to add code to the button to make pictureBOX load another picture when you click the button, thank you!
in MFC development, how to change the picture content of pictureBox by clicking a button?
this property in pictureBOX:
how to add code to the button to make pictureBOX load another picture when you click the button, thank you!
in MFC development, how to switch tabControl pages with a button? for example, in C-sharp, you can click the button to switch pages by adding the following statement to the button: this.tabControl1.SelectedIndex = 2; but only these two attributes ...
I know that there is an InvalidateRect setting area in onpaint, but if you can only draw on CClientDC directly when clicking on the function, how to set the drawing update area ...