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tempman

Screen capture and resize - simpe solution

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tempman

Hi, I need a simpe solution that screen capture and then resize it for 200%.

I am confused with _GDIPlus_GraphicsDrawImage

Thanks!

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FireFox

Hi,

Take a look at the _GDIPlus_ScaleImage function (available on the forum or in the beta version).

Br, FireFox.


 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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tempman

I am still sitting in the dark, any simple example, please. :

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FireFox

I am still sitting in the dark, any simple example, please. :'(

In the beta helpfile there is an example AND in the forum there is necessarily an example on its use.

Br, FireFox.


 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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tempman

It is obvious that I can't find it AND this is the second thread where you are giving me the theoretical solution istead of usable one...

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Melba23

FireFox,

I think you will find that _GDIPlus_ImageScale (note title word order) will be in the next beta to be released. And on the forum I can only find it in UEZ's "New GDI+" thread which is not visible to the OP. ;)

tempman,

This is the example to which FireFox was referring:

#include <GUIConstantsEx.au3>
#include <Constants.au3>
#include <ScreenCapture.au3>

Example()

Func Example()
    _GDIPlus_Startup()
    Local Const $iW = @DesktopWidth / 4, $iH = @DesktopHeight / 4

    Local $hHBmp = _ScreenCapture_Capture("", 0, 0, $iW, $iH) ;create a GDI bitmap by capturing 1/8 of desktop
    Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hHBmp) ;convert GDI bitmap to GDI+ bitmap
    _WinAPI_DeleteObject($hHBmp) ;release GDI bitmap resource because not needed anymore

    Local $iScale = 2.75 ;1.0 is without any scaling
    Local $hBitmap_Scaled = _GDIPlus_ImageScale($hBitmap, $iScale, $iScale, $GDIP_INTERPOLATIONMODE_NEARESTNEIGHBOR) ;scale image by 275% (magnify)

    Local $hGUI = GUICreate("GDI+ test", $iW * $iScale, $iH * $iScale, -1, -1) ;create a test gui to display the rotated image
    GUISetState()

    Local $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;create a graphics object from a window handle
    _GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap_Scaled, 0, 0) ;display scaled image

    While 1
        Switch GUIGetMsg()
            Case $GUI_EVENT_CLOSE
                ExitLoop
        EndSwitch
    WEnd

    ;cleanup resources
    _GDIPlus_GraphicsDispose($hGraphics)
    _GDIPlus_BitmapDispose($hBitmap)
    _GDIPlus_BitmapDispose($hBitmap_Scaled)
    _GDIPlus_Shutdown()
    GUIDelete($hGUI)
EndFunc   ;==>Example
And here is the function itself:

Func _GDIPlus_ImageScale($hImage, $iScaleW, $iScaleH, $iInterpolationMode = $GDIP_INTERPOLATIONMODE_HIGHQUALITYBICUBIC)
    Local $iWidth = _GDIPlus_ImageGetWidth($hImage) * $iScaleW
    If @error Then Return SetError(1, 0, 0)
    Local $iHeight = _GDIPlus_ImageGetHeight($hImage) * $iScaleH
    If @error Then Return SetError(2, 0, 0)
    Local $hBitmap = _GDIPlus_BitmapCreateFromScan0($iWidth, $iHeight)
    If @error Then Return SetError(3, 0, 0)
    Local $hBmpCtxt = _GDIPlus_ImageGetGraphicsContext($hBitmap)
    If @error Then
        _GDIPlus_BitmapDispose($hBitmap)
        Return SetError(4, 0, 0)
    EndIf
    _GDIPlus_GraphicsSetInterpolationMode($hBmpCtxt, $iInterpolationMode)
    If @error Then
        _GDIPlus_GraphicsDispose($hBmpCtxt)
        _GDIPlus_BitmapDispose($hBitmap)
        Return SetError(5, 0, 0)
    EndIf
    _GDIPlus_GraphicsDrawImageRect($hBmpCtxt, $hImage, 0, 0, $iWidth, $iHeight)
    If @error Then
        _GDIPlus_GraphicsDispose($hBmpCtxt)
        _GDIPlus_BitmapDispose($hBitmap)
        Return SetError(6, 0, 0)
    EndIf
    _GDIPlus_GraphicsDispose($hBmpCtxt)
    Return $hBitmap
EndFunc   ;==>_GDIPlus_ImageScale
I hope that helps. :)

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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FireFox

very hard to search for _GDIPlus_ScaleImage.


 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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FireFox

And on the forum I can only find it in UEZ's "New GDI+" thread which is not visible to the OP. ;)

My link shows the contrary.

Edit: When I meant example, it's how the function is used (e.g: in the link I posted) that can be an example.

Edited by FireFox

 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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Melba23

FireFox,

I was searching for _GDIPlus_ImageScale - that is what the function is called in the next Beta. Neither name features in the current Beta, which is where you suggested it could be found and where I went looking. ;)

But anyway the OP has got his function now. :)

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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FireFox

Yeah no problem :)


 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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