Jump to content

[solved] GDIPlus, drawing dots.(?)


MvGulik
 Share

Recommended Posts

Just developing and testing a parts in a current project.

Needed to draw some dots in a image for previewing/debugging. But there seems to be no direct drawdot function.

Drawing with _GDIPlus_GraphicsDrawLine($hGraphic, $i1, $i2, $i1+1, $i2+1, $hPen) works.

But thats one dot to much. And with ", $i1+0, $i2+0," I get on dot to less. Or no dots at all.

Any know alternative's for drawing dots with GDIPlus UDF's ?

- like to know for general testing purposes. (as final code in this case will probably just dump the used data as raw image data.)

- could be something local. if I recall correctly.

---[e:1]---

Used(stripped-down) code.

#include <WinAPI.au3>
#include <GDIPlus.au3>
_CreateImage('ignored', 'imageout.png', 100, 100)
Exit
Func _CreateImage($aMap_Date, $filename, $iW = 32, $iH = 32, $iColor = 0xFFFF00FF)
    #forceref $aMap_Date

    ;; setup
    Local $hBMP = _WinAPI_CreateBitmap($iW, $iH, 1, 32)
    _GDIPlus_Startup()
    Local $hImage1 = _GDIPlus_BitmapCreateFromHBITMAP($hBMP)
    Local $hGraphic = _GDIPlus_ImageGetGraphicsContext($hImage1)
    _GDIPlus_GraphicsClear($hGraphic, $iColor)
    Local $hPen = _GDIPlus_PenCreate()

    ;; draw
    Local $iTmp = 1
    For $i1 = 0 To 20 Step 5 ;; $iW - 1
    For $i2 = 0 To 20 Step 5;; $iH - 1
        _GDIPlus_GraphicsDrawLine($hGraphic, $i1, $i2, $i1 + $iTmp, $i2 + $iTmp, $hPen)
    Next
    Next

    ;; save to image
    _GDIPlus_ImageSaveToFile($hImage1, $filename)

    ;; cleanup
    _GDIPlus_PenDispose($hPen)
    _GDIPlus_ImageDispose($hImage1)
    _GDIPlus_GraphicsDispose($hGraphic)
    _WinAPI_DeleteObject($hBMP)
    _GDIPlus_Shutdown()
EndFunc

Edited by MvGulik

"Straight_and_Crooked_Thinking" : A "classic guide to ferreting out untruths, half-truths, and other distortions of facts in political and social discussions."
"The Secrets of Quantum Physics" : New and excellent 2 part documentary on Quantum Physics by Jim Al-Khalili. (Dec 2014)

"Believing what you know ain't so" ...

Knock Knock ...
 

Link to comment
Share on other sites

:x

Thanks.

Much better.

"Straight_and_Crooked_Thinking" : A "classic guide to ferreting out untruths, half-truths, and other distortions of facts in political and social discussions."
"The Secrets of Quantum Physics" : New and excellent 2 part documentary on Quantum Physics by Jim Al-Khalili. (Dec 2014)

"Believing what you know ain't so" ...

Knock Knock ...
 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...