c# - Graphics.FillRectangle() didn't work -

- 

graphics gp = graphics.fromhwnd(p2ppic.handle);  solidbrush sb = new solidbrush(color.dodgerblue);  lock (gppalette) {      gpp.fillrectangle(sb, arectangle); }

p2ppic picturebox object in c#; these main code ,and code run, did not take effect can tell me why?

depends have placed code. picturebox own painting.


Comments

Post a Comment

Popular posts from this blog

iphone - Using nested NSDictionary with Picker -

-
newbie here, i have single component picker set plist, each item being array, multiple strings in each array app uses. currently plist structure this: nsdictionary -> nsarray -> nsstring | | items in picker data each item but now, want: nsdictionary -> nsdictionary -> nsarray -> nsstring | | | different picker data sets items in picker data each item so there multiple sets of picker components show using segmented control etc... i'm not sure if possible, , hoping save me making many different separate picker controllers. what has me stumped getting ingested properly this have now, builds crashes (debug info below): nsbundle *bundle = [nsbundle mainbundle]; nsstring *plistpath = [bundle pathforresource:@"camerasdatabase" oftype:@"plist"]; nsdictionary *dictionary = [[nsdictionary alloc] initwithcontentsoffi...
Read more

objective c - Newbie question -multiple parameters -

-
i trying implement private method takes nsmutabledictionary , player object parameters. private method, place exists in ".m" file. it declared as -(void) incrementscore: (nsmutabledictionary*) scoreboard forplayer: ( player* ) player { and call follows : [ self incrementscore:deucescore forplayer:p]; however,it won't compile - may not response message -incrementscore:forplayer i'm not sure error lies - need declare method in ".h" file, or elsewhere in ".m" file, or have got syntax wrong? the compiler needs find declaration method somewhere before use it. done in 3 way: declare method in (public) @interface class in .h file . declare method in class extension (a semi-private @interface , @ top of .m files). define method somewhere in @implementation before first use of it.
Read more

php - accessing mysql using different server to which db connection data is located -

-
i'm trying include file db connection info (hostname password username). this have far: include ('http://site.com/config35sdf322e54353452d/wp2154654315634652132513546541564.php'); mysql_connect($hostname,$username,$password); @mysql_select_db($dbname) or die( "unable select database"); include ('../refference.php'); $select = mysql_query("select my_field $usertable ". "gdi_username = '$sponsor_gdi_id' , unique_id = '$sponsor_refference'"); while($check = mysql_fetch_array($select)) { $sponsor_email = $check["email"]; $sponsor = $check["gdi_username"]; $sponsor_first_nme = $check["first_name"]; $sponsor_second_nme = $check["last_name"]; $sponsor_domain = $check["gdi_domain"]; $unq_id = $check["unique_id"]; } $sponsor_name = "$sponsor_first_nme $sponsor_second_nme"; echo "$sponsor $hostname" ?> i err...
Read more