SetPixel

[SteveCRM]

Im getting an error usng setpixel (And how do I use COLORREF?)

Can anyone give me an example of either? :)

[CyberCarsten]

Use this:


COLORREF green = RGB(0,255,0); // Create the color green
SetPixel(hdc,234,300,green); // Plot the pixel


Use COLORREF to create the color you want to draw with.

[SteveCRM]

Thanks :D

[SteveCRM]

uh oh....just tested it


error C2275: 'HDC' : illegal use of this type as an expression

[Vlatko]

You didn't use
SetPixel(HDC,234,300,green);
or
HDC = ...

right.
Post some code.

[SteveCRM]

the error applies to this code:


SetPixel(HDC,50,50,color); // Plot the pixel

[Vlatko]

Well the error is very obvious. HDC is a datatype like (not exactly the same but it is a datatype) int,double.
You can't use a datatype as an expression.
int a = int //same error
You have to declare a variable of that type first.
int b = 5;
int a = b;

In your case

HDC myDC = GetDC(somehwnd);
SetPixel(myDC,50,50,color); // Plot the pixel

[SteveCRM]

you're the man :D