Mobile Signature - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
You know sometime someone tells you about something, and you can tell there is a whole lot more to it than they are telling you about. Well, signature capture for Windows Mobile is one of those things. It's really not bad today and you can do it in one sitting easily now. But there was a time, when if your life depending on it you might be able to get it right. At least we have managed code now. A fewofus attempted to do this feat in embedded Visual Basic years ago and I'm surprised it didn't cost us our sanity. Oh the humanity…
You could do it you just had to copy each color pixel by pixel and save it into a bitmap, and that was a challenge too. And GetPixel() had to be the slowest function call ever. It took at least a second. No way, you were going to give someone a full screen to put there signature.
Office 2007 might have 2007 features in it. And it works for Office 2007, well to a point. But with Windows Mobile applications less is more. Don't get me wrong I really do think Mobile Signature would make a great feature in a more complete application. But as far as the feature of taking a signature on a mobile device this is a great approach.
Also note that Mobile Signature could be easily adapted into a drawing application, and so on, especially for kids.
Let's talk about UI first. Notice how much space is dedicated to taking the user's signature. This is important; I've seen almost the reverse before and that just isn't very usable. I took a little extra time and care to make sure all control had a black border around them,expect the black color square. It has a gray border.
One thing to note is a wanted the user to be able to tell what color they would be writing in without having to draw on the screen. This is accomplished by having the borders around the active color flash on and off. This is a great visual effect that was easy to implement with a timer. We track the currently active color in a form level variable, and on the timer tick event, which happens every 500 ms, we toggle the visibility of the border around the active color. Works great! Check it out!
The menu is another area that is simple but you can learn from it. Save is very important to us, so it is prominent and has it own hardware button that can cause it to occur. On the menu we have an option for clearing the screen, showing the about form, and exiting the application. But we also have a menu option to change the size of the line we are drawing with. It can be set from any of the following: 1 pixel, 3 pixels, 5 pixels.
The core of the application is the code that actually draws the lines on the screen. One area of code that is worth checking out is the code to save the bitmap of the signature. It's pretty advanced and powerful.
Like it? Share with your friends!
If you got an error while installing Themes, Software or Games, please, read FAQ.
Supported operating systems:
Windows Mobile 2003, Windows Mobile 5.0, Windows Mobile 6 Classic, Windows Mobile 6 Professional, Windows Mobile 6.1 Classic, Windows Mobile 6.1 Professional
Similar Software:
DrawingExploreing DrawingExploreing is a folder based full-featured folder based drawing tool that allows you to compose 240x268 pixel JPEG images with custom compression. You can draw and also insert text into the images as well as use the drawing tools. The JPEG libraries are from Independent JPEG Group
NotePapers NotePapers - This program allows you to make a note name and draw an image. The images are stored in the 'NotePapers' folder of your PocketPC.
This program requires that you have both the 'BeanDLL.dll' file ** and ** the runtime files for Visual Basic on your PocketPC computer
Kai's Black Board.Net Kai's Black Board.Net Draw pictures, make notes or write your signature. With the Black Board you draw or write with the pen and can save the picture (jpg, gif, bmp, png) and open again later
TwityfrogDrawings TwityfrogDrawings is a full-featured drawing tool that allows you to compose 240x268 pixel JPEG images and upload to your Twitter account via Yfrog.com. The JPEG libraries are from Independent JPEG Group. The Twitter image storage/updater service is from ImageShack
DrawingKit DrawingKit - This program allows you to draw pictures and stores them in a compact vector file format.
This program requires that you have both the 'BeanDLL.dll' file ** and ** the runtime files for Visual Basic on your PocketPC computer. Simply unzip the file for your processor and place the DLL file in the 'Windows' folder of your PocketPC computer
ColourComics ColourComics - This program allows you to make colour comic images and include text notes. All frames are stored in 1 compact vector file. Use the joypad to move frames.
This program requires that you have both the 'BeanDLL.dll' file ** and ** the runtime files for Visual Basic on your PocketPC computer
DrawingPublisher This program allows you to draw with 7 character pens on your PocketPC display. Tap the 'Convert HTML' button to convert the drawing to a HTML page in Courier font. You can preview the page or FTP it to a server
DrawingBitmaper DrawingBitmaper allows you to create colour drawings and save them in 24 bit bitmap format. You can select the pen width/style and colour and draw the image. Select save to save the drawing to a bitmap file. You can also preview the image in your image viewer
DrawingWVGA DrawingWVGA - DrawingWVGA is a drawing utility for Windows Mobile. It lets you compose 240x340 pixel JPEG images with custom compression.
The app allows you to easily draw on the screen and also add text to the picture.
DrawingWVGA uses the JPEG libraries from Independent JPEG Group
CalendarsNotes CalendarsNotes is an app which allows you to create compact monochrome 2 bit bitmaps drawings/notes and store them in a folder based calendar interface. You can also edit the notes and export to GIF, JPEG file format. The JPEG libraries are from Independent JPEG Group
Other Software by developer «Chris Craft»:
SMS Logger SMS Logger - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
I've had a lot of requests for SMS related applications
Community Megaphone Reader Community Megaphone Reader - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET
MobileInfo MobileInfo - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
Information is power. And with the .NET Compact Framework we can have all the information we want
Pocket Death Clock Pocket Death Clock - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
Let's have some fun today. And do an application that is just for kicks
Trippr Trippr - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
You've probably already figured out what this application does
Mobile Speedometer Mobile Speedometer - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET
Mobile SMS Remote Mobile SMS Remote - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET
Mobile Quiz Mobile Quiz - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
Today we are going to look at another classic goal in Mobile development, data collection
Mobile Weather Mobile Weather - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET
Mobile SMS Contact Mobile SMS Contact - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
Today one of my readers, Paul Diston, made the following request