Jump to content

How to know if there is an image in the pic?


Belini
 Share

Recommended Posts

From time to time need to check for image in Pic, need to know if is empty or not.

GUICtrlSetImage ($pic_amostra, "image address"); exists precise image of this information

or

GUICtrlSetImage ($pic_amostra, ""); There is no precise image of this information

$PicState = ; Função para saber se há imagem?

msgbox(4096, "result", $PicState)

GUICtrlSetImage ($ pic_amostra, "image address"); need exists image of this information
GUICtrlSetImage ($ pic_amostra, ""); There is the need to image of this information

$ PicState =; Function to know if there is picture?

msgbox (4096, "result", $ PicState)
Edited by Belini
Link to comment
Share on other sites

  • Moderators

Belini,

If this is in your own script, just use a flag to indicate if an image has been loaded. ;)

M23

Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

Open spoiler to see 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

 

Link to comment
Share on other sites

It is in my script but more the image is changed several times and in different parts of code and sometimes need to be blank, if I can verify directly the PIC would be better.

Link to comment
Share on other sites

Set $PicState to 1 when you set an image to the control, set $PicState to 0 when you remove it.

If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

Link to comment
Share on other sites

@ BrewManNH if there is no other way to check for this without changing the code I will use as you and @ Melba23 suggested.

Link to comment
Share on other sites

The friend @joelson0007 passed me a code that does what I need, thanks to all those who helped.

#include <GUIConstantsEx.au3>
#include <ButtonConstants.au3>
#include <GuiImageList.au3>
#include <GuiButton.au3>
Example()

Func Example()
    Local $msg
    GUICreate("My GUI") ; will create a dialog box that when displayed is centered
    $b = GUICtrlCreateButton("my picture button", 10, 20, 40, 40, $BS_ICON)
    GUISetState()
    MsgBox(4096, "", "o controle tem um image?" & @CRLF & CtrlHasPic($b))
    Sleep(500)
    GUICtrlSetImage($b, "shell32.dll", 22)
    MsgBox(4096, "", "o controle tem um image?" & @CRLF & CtrlHasPic($b))

    While 1
        $msg = GUIGetMsg()

        If $msg = $GUI_EVENT_CLOSE Then ExitLoop
    WEnd
EndFunc   ;==>Example


;função para checar se o controle tem imagem
Func CtrlHasPic($h)
    Return IsPtr(_GUICtrlButton_GetImage($h))
EndFunc   ;==>CtrlHasPic
Link to comment
Share on other sites

Please note, I never said there wasn't another way to do it, M23 and I just gave you the most sensible approach, but if you want to call another 2 functions to do something go right ahead, but you're making it way more complicated than you needed to.

If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

Link to comment
Share on other sites

My code is huge and exchange of images is taken at several points and others need to clean pic to show a video in his place, I know you talked suggestion is sensible only because of the size of my code I needed a quicker solution.

I will use in my jukebox program:

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...