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‫‪142‬‬ ‫)‪For Each picFormat In Array(vbCFBitmap, vbCFMetafile, vbCFDIB, vbCFPalette‬‬ ‫‪If Clipboard.GetFormat(picFormat) Then‬‬ ‫)‪Set Picture1.Picture = Clipboard.GetData(picFormat‬‬ ‫‪Exit For‬‬ ‫‪End If‬‬ ‫‪Next‬‬

‫آﺎﺋﻦ اﻟﺸﺎﺷﺔ ‪Screen‬‬ ‫آﺎﺋﻦ اﻟﺸﺎﺷﺔ ﻳﻤﺜﻞ ﺟﻤﻴﻊ ﺷﺎﺷﺎت وﻧﻮاﻓﺬ ﺑﺮﻧﺎﻣﺠﻚ وﻳﺤﺘﻮي ﻋﻠـﻰ ﺧﺼـﺎﺋﺺ ﺗﺘﻌﻠـﻖ‬ ‫ﺑــﺎﻟﻤﻈﻬﺮ اﻟﻌــﺎم ﻟﺴــﻄﺢ ﻣﻜﺘــﺐ ﻧﻈــﺎم اﻟﺘﺸــﻐﻴﻞ‪ ،‬آﺎﻟﺨﺎﺻــﻴﺔ ‪ FontCount‬اﻟﺘــﻲ ﺗﻌــﻮد‬ ‫ﺑﻤﺠﻤﻮع اﻟﺨﻄﻮط اﻟﻤﺘﻮﻓﺮة ﻓﻲ ﻧﻈﺎم اﻟﺘﺸﻐﻴﻞ واﻟﺘﻲ ﺗﺴـﺘﺨﺪﻣﻬﺎ ﻣـﻊ اﻟﺨﺎﺻـﻴﺔ ‪Font‬‬ ‫اﻟﺘﻲ ﺗﻌﻮد ﺑﺎﺳﻤﺎء اﻟﺨﻄﻮط‪:‬‬ ‫‪Dim iCounter As Integer‬‬ ‫‪For iCounter = 0 To Screen.FontCount - 1‬‬ ‫)‪List1.AddItem Screen.Fonts(iCounter‬‬ ‫‪Next‬‬

‫اﻟﺨﺎﺻﻴﺔ ‪ ActiveForm‬ﺗﻤﺜﻞ ﻧﺎﻓﺬة اﻟﻨﻤﻮذج اﻟﻨﺸﻄﺔ ﻓﻲ اﻟﺒﺮﻧﺎﻣﺞ‪ ،‬وهـﻲ ﻣﺮﺟـﻊ اﻟـﻰ‬ ‫آــﺎﺋﻦ ﻧﺎﻓــﺬة اﻟﻨﻤــﻮذج‪ ،‬اﻣــﺎ اﻟﺨﺎﺻــﻴﺔ ‪ ActiveControl‬ﻓﻬــﻲ ﺗﻤﺜــﻞ اﻻداة اﻟﺘــﻲ ﻋﻠﻴﻬــﺎ‬ ‫اﻟﺘﺮآﻴﺰ‪:‬‬ ‫”اﻟﻨﺎﻓﺬة اﻟﻨﺸﻄﺔ“ = ‪Screen.ActiveForm.Caption‬‬

‫اﺧﻴـــﺮا‪ ،‬اﻟﺨﺎﺻـــﻴﺘﺎن ‪ Height‬و ‪ Width‬ﺗﻌـــﻮدان ﺑﺎرﺗﻔـــﺎع وﻋـــﺮض اﻟﻜﺜﺎﻓـــﺔ اﻟﻨﻘﻄﻴـــﺔ‬ ‫‪ Resolution‬ﻟﻠﺸﺎﺷﺔ‪:‬‬ ‫)‪Print "Width = " & ScaleX(Screen.Width, vbTwips, vbPixels‬‬ ‫)‪Print "Height = " & ScaleY(Screen.Height, vbTwips, vbPixels‬‬

‫آﺎﺋﻦ اﻟﻄﺎﺑﻌﺔ ‪Printer‬‬ ‫اﻟﻄﺒﺎﻋﺔ ﻣﻦ اﻟﻤﺰاﻳﺎ اﻟﻀﺮورﻳﺔ اﻟﺘﻲ ﻻﺑﺪ ﻣﻦ ﺗﻮﻓﻴﺮهﺎ ﻓـﻲ ﺑﺮاﻣﺠـﻚ اﻟﺠﺪﻳـﺔ‪ .‬ﺑﻌﻴـﺪا ﻋـﻦ‬ ‫اﺟﺮاءات ‪ API‬اﻟﻤﻌﻘﺪة‪ ،‬ﻳـﻮﻓﺮ ﻟـﻚ ‪ Visual Basic‬آـﺎﺋﻦ اﻟﻄﺎﺑﻌـﺔ ‪ Printer Object‬واﻟـﺬي‬ ‫ﻣﻦ اﺳﻤﻪ ﻳﻌﺮف ﻏﺮﺿﻪ‪.‬‬


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