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Xdialog Imageviewer won't display on open

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  • Xdialog Imageviewer won't display on open

    I have an xdialog with an {Imageviewer} control. Once the xdialog is open, clicking on a file name in the image list shows the image. I've tried various ways to get the first file in the list to show on startup, but without success. The first file in the text file list opens just fine on startup.

    Here's the code
    Code:
    dim lv as p = local_variables()
    dim imgpath as c = A5.Get_Exe_Path() + chr(92)
    dim computer_name as c = api_getmachinename()
    
    Dim format as p 
    Format.tab_stops=""
    Format.odd_row_color="White"
    Format.even_row_color="White"
    Format.odd_selected_color="Dark Blue"
    Format.even_selected_color="Dark Blue"
    Format.font="tahoma,10"
    Format.font_color_unselected="Black"
    Format.font_color_selected="White"
    Format.lastbutton="OK"
    Format.group_size=1
    Format.number_rows=.f.
    Format.alternating_bands=.f.
    '
    dim imgs as C
    dim txtfiles as C
    dim varC_result as C
    dim dlg_title as c = "MANUAL DL INFORMATION ACQUISITION"
    
    dim iv as p
    iv.width = 0
    iv.height = 0
    iv.loadEvent = "Load"
    dim mode as c
    ImgList = filefind.get(imgpath + "*.jpg",file_find_normal+file_find_not_directory,"N")
    auto_list_imgs = ImgList
    'Apply 'owner draw' formatting information to the list
    auto_list_imgs = a5_owner_draw_list_fmt(auto_list_imgs,Format)
    temp_count = w_count(auto_list_imgs,crlf())
    DELETE a_imgs
    DIM a_imgs[temp_count] as c
    a_imgs.initialize(auto_list_imgs)
    
    dim image_name as c = ""
    
    'if imglist <> "" then
    '	image_name = imgpath + word(imglist,1,crlf())
    'end if
    
    TxtList = filefind.get(imgpath + "*.txt",file_find_normal+file_find_not_directory,"N")
    auto_list_txtfiles = txtlist
    auto_list_txtfiles = a5_owner_draw_list_fmt(auto_list_txtfiles,Format)
    temp_count = w_count(auto_list_txtfiles,crlf())
    DELETE a_txtfiles
    DIM a_txtfiles[temp_count] as c
    a_txtfiles.initialize(auto_list_txtfiles)
    if alltrim(txtlist) <> "" then
    	dim file_name as c = word(txtlist,1,crlf())
    	file_name = imgpath + file_name
    	dim fileinfo as c = file.to_string(file_name)
    end if
    
    dim explaintext as c = GetExplainText()
    
    heading_string = "The image file name prefix (under \"Available Images\") must match the driver's license number EXACTLY for the \"Auto Acquire\" to work properly. The text file prefix (see below) must also match exactly.\
    					Use this form when the scanner fails to read either (or both) image or text file names and contents accurately." 
    footer_string = ""
    ok_button_label = "&OK"
    cancel_button_label = "&Cancel"
    dim dlg_code as c = <<%dlg%
    {can_exit=NoExit}
    {background=Pale Yellow}
    {region}{font=tahoma,10,b}
    {text=150,4:heading_string};
    {endregion};
    {region}{font=tahoma,10}
    | Available Image Files:{sp=19}DL Image:;
    | [%d;O={@@}%.40,10imgs^#a_imgs!imgs_*]{sp=4}{imageViewer=110,25iv};;
    {lf};
    | Available Text Files:{sp=22}DL Text:;
    | [%d;O={@@}%.40,10txtfiles^#a_txtfiles!txtfiles_*]{sp=4}[%mw%.110,10fileinfo];;
    | [%Rmw%.155,3ExplainText];
    {endregion};
    {region}
    {text=55,1:footer_string};
    {endregion};
    {line=1,0};
    {region}{justify=center}
    <15=ok_button_label!OK> <15=cancel_button_label!CANCEL>
    {endregion};
    %dlg%
    
    dim event_code as c = <<%code%
    if a_dlg_button = "CANCEL" then
    	ui_modeless_dlg_close(dlg_title)
    end if
    if a_dlg_button = "NoExit" then
    	a_dlg_button = ""
    end if
    if a_dlg_button = "init" then
    	'image_name = imgpath + word(imgs,1,crlf())
    	'ShowImage(lv)
    end if
    if a_dlg_button = "load" then
    	'ui_msg_box("","loaded")
    end if
    
    if left(a_dlg_button,5) = "imgs_" then
    	if a_dlg_button = "imgs_change" then
    		a_dlg_button = ""
    		image_name = imgpath + alltrim(imgs)
    		ShowImage(lv)
    		ui_yield()
    		xbasic_wait_for_idle()
    		ui_dlg_refresh(dlg_title)
    			else
    				a_dlg_button = ""
    	end if
    	elseif left(a_dlg_button,9) = "txtfiles_" then
    		if a_dlg_button = "txtfiles_change" then
    			a_dlg_button = ""
    			file_name = imgpath + alltrim(txtfiles)
    			fileinfo = file.to_string(file_name)
    			else
    				a_dlg_button = ""
    		end if
    	else
    		a_dlg_button = ""
    end if
    
    
    %code%
    varC_result = ui_dlg_box(dlg_title,dlg_code,event_code)
    'ui_modeless_dlg_box(dlg_title,dlg_code,event_code)
    '--------------------------------------------
    Function ShowImage as L (lv as p)
    with lv
    	mode = "Best Fit"
    	iv.object.setMode(mode)
    	if file.exists(image_name) then
    		iv.object.loadImage(image_name)
    	end if
    	ui_dlg_refresh(dlg_title)
    end with
    End function
    '--------------------------------------------
    Function GetExplainText as c ()
    
    GetExplainText = "This is where the instructions will go."
    
    End Function
    '--------------------------------------------
    XDforAlphaBoard.png
    Any suggestions?
    Finian

  • #2
    Re: Xdialog Imageviewer won't display on open

    Problem solved. These old eyes of mine aren't getting any better. I had inadvertently removed the {startup=init} directive from the dlg_code section so that any code I was sticking in the init event wasn't working. Duh!
    Finian

    Comment


    • #3
      Re: Xdialog Imageviewer won't display on open

      Well at least you showed us your code - that is always good to see!
      Robin

      Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

      Comment

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