button color change

sridhar6994 · Mar 10th 2020, 2:14pm

Hi
I am using GUI builder tool of emwin V5.48 free tool only.
But I can't able to change button color using this tool.
But this tool created a library in which I can able to see the
library function for my need as i mentioned below.

BUTTON_SetBkColor(hItem_color_new_try,0,0x00FF00); //to set background color as green
BUTTON_SetFrameColor(hItem_color_new_try,0x00FF00); //to set frame color as green
BUTTON_SetFocusColor(hItem_color_new_try,0x00FF00); //to set focus color as green
BUTTON_SetFont(hItem_color_new_try, GUI_FONT_32B_ASCII); //to set font size as 32B ASCII
BUTTON_SetText(hItem_color_new_try, "check 3"); //to set text
BUTTON_SetTextColor(hItem_color_new_try,0,0x00); //to set text color as green

But the button color is not changed
Please help me i solving this

Thanks
R Sridhar

SEGGER - Florian · Mar 10th 2020, 2:41pm

Hello,

you have to enter valid GUI_COLORs. You can use the predefined colors (GUI_WHITE, GUI_GREEN, etc...) or make your own colors using the GUI_MAKE_COLOR() macro.

The colors are entered into this macro in the format ABGR. The alpha value is stored in the highest 16 bits. 00 is opaque, FF is transparent.

For example, opaque blue looks like this: GUI_MAKE_COLOR(0x00FF0000). I'd suggest you to also read the "Colors" chapter in the manual to learn more about emWin's color format.

Best regards,

Florian

sridhar6994 · Mar 11th 2020, 5:36am

Hi floriann

Thanks for your answer
I have done as per your suggestion,but still not getting colors on button
BUTTON_SetBkColor(hItem_color_new_try,0,GUI_MAKE_COLOR(GUI_BLUE));
BUTTON_SetFrameColor(hItem_color_new_try,GUI_MAKE_COLOR(GUI_GREEN));
BUTTON_SetFocusColor(hItem_color_new_try,GUI_MAKE_COLOR(GUI_LIGHTGREEN));
BUTTON_SetFont(hItem_color_new_try, GUI_FONT_32B_ASCII);
BUTTON_SetText(hItem_color_new_try, "check 3");
BUTTON_SetTextColor(hItem_color_new_try,0,GUI_MAKE_COLOR(GUI_ORANGE));
Thanks
R Sridhar

SEGGER - Florian · Mar 12th 2020, 11:17am

Hi,

you have to use the GUI_MAKE_COLOR to make colors from hex values (like GUI_MAKE_COLOR(0x00FF0000)). The predefined color macros don't need the GUI_MAKE_COLOR macro, so just enter e.g. GUI_BLUE as parameter.

Best regards,

Florian

sridhar6994 · Mar 12th 2020, 11:39am

Hi Florian
Thanks for your reply
please could you send any code which has different color of buttons with different frame and focus colors
Thanks
R Sridhar

bio_med · Mar 12th 2020, 1:27pm

Florian,

I think I have the same problem. What we are trying to ask is "What is the API that let's us change the color of a button???"

Best regards,
BMD

sridhar6994 · Mar 13th 2020, 8:40am

Hi
Thanks for your reply
Actually I can able to add color to buttons
I am attaching my code for reference
Thanks
R Sridhar

SEGGER - Florian · Mar 13th 2020, 11:13am

Hello,

the routines BUTTON_SetBkColor() and BUTTON_SetFocusColor() only work in conjunction with the classic skin. The classic skin can be enabled by calling BUTTON_SetSkinClassic().

To change the color properties of a button that uses the default skin, skinning props should be used. With skinning props, the user enters the desired properties of a widget (e.g. the focus and background color of a button) into a static array. These properties can then be applied with BUTTON_SetSkinFlexProps().

I've attached a sample that demonstrates this. You can find more details about skinning in the user manual.

Best regards,

Florian

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