Call the system color table to modify the color and transparency.

 

Shows the interface:

In fact, it is still very simple. I have never been familiar with the controls provided by.

 

1. Drag the colorDialog control to the current interface;

2. Some codes are as follows: (this is for the ARGB color. If it is an RGB color, no transparency value is required)

    

Private void selcecolorbt_Click (object sender, EventArgs e)

        {

If (this. colorDialog1.ShowDialog () = DialogResult. OK) // display the color table

            {

TextBoxX1.BackColor = this. colorDialog1.Color; // you can change the display color of textbox.

TextBoxX1.Refresh ();

Color color = this. textBoxX1.BackColor;

Int alpha = this. slider1.Value; // gets the transparency value 0-255

Uint sycolor = (uint) Color. FromArgb (alpha, color). ToArgb (); // Obtain the uint value of the ARGB Color

===== Update the color of the image in the scenario =======

              }

            }

Call the system color table to modify the color and transparency.